./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8a07fe1a25f7f87a80e2b435a79d4715298ae698f37888069e22026322224ef --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:08:27,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:08:27,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:08:27,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:08:27,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:08:27,170 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:08:27,171 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:08:27,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:08:27,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:08:27,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:08:27,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:08:27,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:08:27,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:08:27,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:08:27,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:08:27,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:08:27,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:08:27,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:08:27,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:08:27,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:08:27,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:08:27,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:08:27,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:08:27,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:08:27,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:08:27,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:08:27,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:08:27,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:08:27,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:08:27,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:08:27,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:08:27,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:08:27,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:08:27,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:08:27,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:08:27,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:08:27,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:08:27,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:08:27,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:08:27,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:08:27,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:08:27,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 04:08:27,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:08:27,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:08:27,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:08:27,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:08:27,237 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:08:27,237 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:08:27,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:08:27,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:08:27,238 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:08:27,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:08:27,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 04:08:27,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:08:27,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:08:27,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:08:27,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:08:27,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:08:27,240 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:08:27,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:08:27,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:08:27,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:08:27,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:08:27,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:08:27,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:08:27,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:08:27,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:08:27,241 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 04:08:27,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 04:08:27,241 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:08:27,241 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:08:27,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:08:27,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:08:27,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8a07fe1a25f7f87a80e2b435a79d4715298ae698f37888069e22026322224ef [2021-12-16 04:08:27,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:08:27,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:08:27,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:08:27,494 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:08:27,495 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:08:27,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-12-16 04:08:27,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edff861af/005a3de34fae40a3a50bbcea8e19887c/FLAG044925444 [2021-12-16 04:08:28,133 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:08:28,134 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-12-16 04:08:28,162 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edff861af/005a3de34fae40a3a50bbcea8e19887c/FLAG044925444 [2021-12-16 04:08:28,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/edff861af/005a3de34fae40a3a50bbcea8e19887c [2021-12-16 04:08:28,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:08:28,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:08:28,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:08:28,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:08:28,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:08:28,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:08:28" (1/1) ... [2021-12-16 04:08:28,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ffcc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:28, skipping insertion in model container [2021-12-16 04:08:28,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:08:28" (1/1) ... [2021-12-16 04:08:28,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:08:28,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:08:28,938 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-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-12-16 04:08:29,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:08:29,221 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:08:29,295 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-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-12-16 04:08:29,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:08:29,415 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:08:29,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29 WrapperNode [2021-12-16 04:08:29,417 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:08:29,418 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:08:29,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:08:29,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:08:29,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,537 INFO L137 Inliner]: procedures = 96, calls = 1014, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 1808 [2021-12-16 04:08:29,537 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:08:29,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:08:29,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:08:29,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:08:29,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,558 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:08:29,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:08:29,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:08:29,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:08:29,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (1/1) ... [2021-12-16 04:08:29,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:08:29,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:08:29,685 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) [2021-12-16 04:08:29,705 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 [2021-12-16 04:08:29,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:08:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:08:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:08:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2021-12-16 04:08:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2021-12-16 04:08:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2021-12-16 04:08:29,760 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2021-12-16 04:08:29,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:08:29,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:08:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 04:08:29,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-12-16 04:08:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-12-16 04:08:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-12-16 04:08:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-12-16 04:08:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-16 04:08:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-16 04:08:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:08:29,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-16 04:08:29,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-16 04:08:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2021-12-16 04:08:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2021-12-16 04:08:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:08:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:08:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:08:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:08:29,763 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2021-12-16 04:08:29,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2021-12-16 04:08:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:08:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:08:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-16 04:08:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-16 04:08:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-16 04:08:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-16 04:08:29,764 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2021-12-16 04:08:29,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2021-12-16 04:08:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:08:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:08:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2021-12-16 04:08:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2021-12-16 04:08:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2021-12-16 04:08:29,765 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2021-12-16 04:08:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:08:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:08:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 04:08:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2021-12-16 04:08:29,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2021-12-16 04:08:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:08:29,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 04:08:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 04:08:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2021-12-16 04:08:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2021-12-16 04:08:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:08:29,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:08:30,016 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:08:30,018 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:08:30,073 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:08:30,744 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:08:30,756 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:08:30,757 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:08:30,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:08:30 BoogieIcfgContainer [2021-12-16 04:08:30,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:08:30,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:08:30,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:08:30,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:08:30,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:08:28" (1/3) ... [2021-12-16 04:08:30,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21226e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:08:30, skipping insertion in model container [2021-12-16 04:08:30,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:29" (2/3) ... [2021-12-16 04:08:30,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21226e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:08:30, skipping insertion in model container [2021-12-16 04:08:30,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:08:30" (3/3) ... [2021-12-16 04:08:30,766 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-12-16 04:08:30,770 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:08:30,770 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:08:30,811 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:08:30,815 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 04:08:30,816 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:08:30,834 INFO L276 IsEmpty]: Start isEmpty. Operand has 376 states, 283 states have (on average 1.4240282685512367) internal successors, (403), 291 states have internal predecessors, (403), 71 states have call successors, (71), 21 states have call predecessors, (71), 20 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2021-12-16 04:08:30,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-16 04:08:30,846 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:30,846 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:30,847 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:30,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:30,850 INFO L85 PathProgramCache]: Analyzing trace with hash 505290590, now seen corresponding path program 1 times [2021-12-16 04:08:30,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:30,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302634898] [2021-12-16 04:08:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:30,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:31,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:31,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:31,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:31,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:31,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 04:08:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:31,368 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-16 04:08:31,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:31,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302634898] [2021-12-16 04:08:31,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302634898] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:31,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:31,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:08:31,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934614351] [2021-12-16 04:08:31,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:31,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:08:31,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:31,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:08:31,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:08:31,400 INFO L87 Difference]: Start difference. First operand has 376 states, 283 states have (on average 1.4240282685512367) internal successors, (403), 291 states have internal predecessors, (403), 71 states have call successors, (71), 21 states have call predecessors, (71), 20 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 04:08:32,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:32,174 INFO L93 Difference]: Finished difference Result 1094 states and 1609 transitions. [2021-12-16 04:08:32,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:08:32,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 48 [2021-12-16 04:08:32,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:32,188 INFO L225 Difference]: With dead ends: 1094 [2021-12-16 04:08:32,188 INFO L226 Difference]: Without dead ends: 699 [2021-12-16 04:08:32,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:08:32,194 INFO L933 BasicCegarLoop]: 599 mSDtfsCounter, 604 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:32,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [656 Valid, 1753 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 04:08:32,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-12-16 04:08:32,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 675. [2021-12-16 04:08:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 526 states have (on average 1.420152091254753) internal successors, (747), 529 states have internal predecessors, (747), 113 states have call successors, (113), 36 states have call predecessors, (113), 35 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2021-12-16 04:08:32,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 972 transitions. [2021-12-16 04:08:32,267 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 972 transitions. Word has length 48 [2021-12-16 04:08:32,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:32,268 INFO L470 AbstractCegarLoop]: Abstraction has 675 states and 972 transitions. [2021-12-16 04:08:32,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 04:08:32,268 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 972 transitions. [2021-12-16 04:08:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-12-16 04:08:32,275 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:32,275 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:32,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 04:08:32,275 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:32,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:32,276 INFO L85 PathProgramCache]: Analyzing trace with hash 390664964, now seen corresponding path program 1 times [2021-12-16 04:08:32,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:32,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814822483] [2021-12-16 04:08:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:32,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:32,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:32,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:32,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:32,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 04:08:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:32,420 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-16 04:08:32,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:32,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814822483] [2021-12-16 04:08:32,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814822483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:32,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:32,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:08:32,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236698261] [2021-12-16 04:08:32,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:32,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:08:32,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:32,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:08:32,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:08:32,424 INFO L87 Difference]: Start difference. First operand 675 states and 972 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 04:08:32,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:32,901 INFO L93 Difference]: Finished difference Result 1495 states and 2155 transitions. [2021-12-16 04:08:32,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 04:08:32,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 72 [2021-12-16 04:08:32,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:32,906 INFO L225 Difference]: With dead ends: 1495 [2021-12-16 04:08:32,906 INFO L226 Difference]: Without dead ends: 837 [2021-12-16 04:08:32,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:08:32,908 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 227 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 1564 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:32,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 1564 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 04:08:32,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2021-12-16 04:08:32,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 820. [2021-12-16 04:08:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 652 states have (on average 1.4248466257668713) internal successors, (929), 656 states have internal predecessors, (929), 124 states have call successors, (124), 44 states have call predecessors, (124), 43 states have return successors, (123), 121 states have call predecessors, (123), 123 states have call successors, (123) [2021-12-16 04:08:32,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1176 transitions. [2021-12-16 04:08:32,933 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1176 transitions. Word has length 72 [2021-12-16 04:08:32,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:32,934 INFO L470 AbstractCegarLoop]: Abstraction has 820 states and 1176 transitions. [2021-12-16 04:08:32,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 04:08:32,934 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1176 transitions. [2021-12-16 04:08:32,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-16 04:08:32,937 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:32,937 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 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] [2021-12-16 04:08:32,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 04:08:32,938 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:32,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:32,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1325133881, now seen corresponding path program 1 times [2021-12-16 04:08:32,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:32,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079003109] [2021-12-16 04:08:32,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:32,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:33,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 04:08:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 04:08:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:08:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 04:08:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,104 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-16 04:08:33,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:33,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079003109] [2021-12-16 04:08:33,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079003109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:33,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:33,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:08:33,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543938631] [2021-12-16 04:08:33,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:33,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:08:33,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:33,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:08:33,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:08:33,106 INFO L87 Difference]: Start difference. First operand 820 states and 1176 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-16 04:08:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:33,468 INFO L93 Difference]: Finished difference Result 1634 states and 2352 transitions. [2021-12-16 04:08:33,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:08:33,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 103 [2021-12-16 04:08:33,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:33,472 INFO L225 Difference]: With dead ends: 1634 [2021-12-16 04:08:33,473 INFO L226 Difference]: Without dead ends: 831 [2021-12-16 04:08:33,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:08:33,475 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 503 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:33,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [558 Valid, 1122 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 04:08:33,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2021-12-16 04:08:33,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 820. [2021-12-16 04:08:33,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 652 states have (on average 1.4003067484662577) internal successors, (913), 656 states have internal predecessors, (913), 124 states have call successors, (124), 44 states have call predecessors, (124), 43 states have return successors, (123), 121 states have call predecessors, (123), 123 states have call successors, (123) [2021-12-16 04:08:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1160 transitions. [2021-12-16 04:08:33,498 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1160 transitions. Word has length 103 [2021-12-16 04:08:33,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:33,499 INFO L470 AbstractCegarLoop]: Abstraction has 820 states and 1160 transitions. [2021-12-16 04:08:33,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-16 04:08:33,499 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1160 transitions. [2021-12-16 04:08:33,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-16 04:08:33,501 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:33,501 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 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] [2021-12-16 04:08:33,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 04:08:33,502 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:33,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:33,502 INFO L85 PathProgramCache]: Analyzing trace with hash 762669387, now seen corresponding path program 1 times [2021-12-16 04:08:33,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:33,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860412577] [2021-12-16 04:08:33,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:33,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:33,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 04:08:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 04:08:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:08:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 04:08:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-16 04:08:33,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:33,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860412577] [2021-12-16 04:08:33,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860412577] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:33,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:33,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-16 04:08:33,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359398101] [2021-12-16 04:08:33,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:33,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 04:08:33,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:33,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 04:08:33,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-16 04:08:33,648 INFO L87 Difference]: Start difference. First operand 820 states and 1160 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-16 04:08:34,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:34,445 INFO L93 Difference]: Finished difference Result 2449 states and 3476 transitions. [2021-12-16 04:08:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:08:34,446 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 103 [2021-12-16 04:08:34,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:34,452 INFO L225 Difference]: With dead ends: 2449 [2021-12-16 04:08:34,452 INFO L226 Difference]: Without dead ends: 1646 [2021-12-16 04:08:34,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-12-16 04:08:34,455 INFO L933 BasicCegarLoop]: 944 mSDtfsCounter, 699 mSDsluCounter, 2343 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 721 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:34,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [721 Valid, 3287 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 04:08:34,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2021-12-16 04:08:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1107. [2021-12-16 04:08:34,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 883 states have (on average 1.4122310305775765) internal successors, (1247), 888 states have internal predecessors, (1247), 164 states have call successors, (164), 60 states have call predecessors, (164), 59 states have return successors, (163), 160 states have call predecessors, (163), 163 states have call successors, (163) [2021-12-16 04:08:34,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1574 transitions. [2021-12-16 04:08:34,492 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1574 transitions. Word has length 103 [2021-12-16 04:08:34,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:34,493 INFO L470 AbstractCegarLoop]: Abstraction has 1107 states and 1574 transitions. [2021-12-16 04:08:34,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-16 04:08:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1574 transitions. [2021-12-16 04:08:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-12-16 04:08:34,495 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:34,496 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 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] [2021-12-16 04:08:34,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 04:08:34,496 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:34,496 INFO L85 PathProgramCache]: Analyzing trace with hash -258398967, now seen corresponding path program 1 times [2021-12-16 04:08:34,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:34,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75090513] [2021-12-16 04:08:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:34,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:34,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:34,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:34,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 04:08:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:34,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 04:08:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:34,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:08:34,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:34,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 04:08:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:34,740 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-16 04:08:34,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:34,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75090513] [2021-12-16 04:08:34,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75090513] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:34,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:34,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:08:34,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77111474] [2021-12-16 04:08:34,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:34,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:08:34,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:34,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:08:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:08:34,742 INFO L87 Difference]: Start difference. First operand 1107 states and 1574 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-16 04:08:35,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:35,106 INFO L93 Difference]: Finished difference Result 2118 states and 3046 transitions. [2021-12-16 04:08:35,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 04:08:35,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 103 [2021-12-16 04:08:35,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:35,111 INFO L225 Difference]: With dead ends: 2118 [2021-12-16 04:08:35,111 INFO L226 Difference]: Without dead ends: 942 [2021-12-16 04:08:35,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:08:35,114 INFO L933 BasicCegarLoop]: 581 mSDtfsCounter, 456 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:35,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [509 Valid, 1428 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 04:08:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2021-12-16 04:08:35,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 929. [2021-12-16 04:08:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 739 states have (on average 1.419485791610284) internal successors, (1049), 743 states have internal predecessors, (1049), 141 states have call successors, (141), 49 states have call predecessors, (141), 48 states have return successors, (140), 138 states have call predecessors, (140), 140 states have call successors, (140) [2021-12-16 04:08:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1330 transitions. [2021-12-16 04:08:35,139 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1330 transitions. Word has length 103 [2021-12-16 04:08:35,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:35,139 INFO L470 AbstractCegarLoop]: Abstraction has 929 states and 1330 transitions. [2021-12-16 04:08:35,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-16 04:08:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1330 transitions. [2021-12-16 04:08:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-16 04:08:35,142 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:35,142 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:35,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-16 04:08:35,142 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:35,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:35,142 INFO L85 PathProgramCache]: Analyzing trace with hash 611897207, now seen corresponding path program 1 times [2021-12-16 04:08:35,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:35,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613875983] [2021-12-16 04:08:35,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:35,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 04:08:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 04:08:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:08:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 04:08:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 04:08:35,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:35,350 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-16 04:08:35,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:35,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613875983] [2021-12-16 04:08:35,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613875983] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:35,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:35,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-16 04:08:35,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018275715] [2021-12-16 04:08:35,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:35,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-16 04:08:35,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:35,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-16 04:08:35,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:08:35,352 INFO L87 Difference]: Start difference. First operand 929 states and 1330 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-16 04:08:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:36,083 INFO L93 Difference]: Finished difference Result 1981 states and 2945 transitions. [2021-12-16 04:08:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-16 04:08:36,083 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 105 [2021-12-16 04:08:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:36,089 INFO L225 Difference]: With dead ends: 1981 [2021-12-16 04:08:36,090 INFO L226 Difference]: Without dead ends: 1617 [2021-12-16 04:08:36,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-12-16 04:08:36,092 INFO L933 BasicCegarLoop]: 798 mSDtfsCounter, 1558 mSDsluCounter, 3514 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 4312 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:36,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1558 Valid, 4312 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-16 04:08:36,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2021-12-16 04:08:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 939. [2021-12-16 04:08:36,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 749 states have (on average 1.4138851802403205) internal successors, (1059), 753 states have internal predecessors, (1059), 141 states have call successors, (141), 49 states have call predecessors, (141), 48 states have return successors, (140), 138 states have call predecessors, (140), 140 states have call successors, (140) [2021-12-16 04:08:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1340 transitions. [2021-12-16 04:08:36,129 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1340 transitions. Word has length 105 [2021-12-16 04:08:36,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:36,130 INFO L470 AbstractCegarLoop]: Abstraction has 939 states and 1340 transitions. [2021-12-16 04:08:36,130 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 7 states have internal predecessors, (67), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-16 04:08:36,130 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1340 transitions. [2021-12-16 04:08:36,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-16 04:08:36,132 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:36,132 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:36,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-16 04:08:36,133 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:36,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:36,133 INFO L85 PathProgramCache]: Analyzing trace with hash -483555880, now seen corresponding path program 1 times [2021-12-16 04:08:36,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:36,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244890697] [2021-12-16 04:08:36,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:36,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 04:08:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 04:08:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:08:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 04:08:36,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-16 04:08:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-16 04:08:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-16 04:08:36,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-16 04:08:36,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:36,287 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-16 04:08:36,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:36,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244890697] [2021-12-16 04:08:36,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244890697] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:36,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:36,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:08:36,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875178079] [2021-12-16 04:08:36,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:36,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:08:36,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:36,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:08:36,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:08:36,289 INFO L87 Difference]: Start difference. First operand 939 states and 1340 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), 6 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 04:08:36,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:36,928 INFO L93 Difference]: Finished difference Result 1915 states and 2779 transitions. [2021-12-16 04:08:36,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-16 04:08:36,928 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), 6 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2021-12-16 04:08:36,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:36,932 INFO L225 Difference]: With dead ends: 1915 [2021-12-16 04:08:36,932 INFO L226 Difference]: Without dead ends: 1078 [2021-12-16 04:08:36,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-12-16 04:08:36,935 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 424 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 2197 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:36,935 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 2197 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-16 04:08:36,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2021-12-16 04:08:36,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 1051. [2021-12-16 04:08:36,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1051 states, 879 states have (on average 1.3856655290102389) internal successors, (1218), 882 states have internal predecessors, (1218), 120 states have call successors, (120), 52 states have call predecessors, (120), 51 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2021-12-16 04:08:36,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1457 transitions. [2021-12-16 04:08:36,969 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1457 transitions. Word has length 112 [2021-12-16 04:08:36,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:36,970 INFO L470 AbstractCegarLoop]: Abstraction has 1051 states and 1457 transitions. [2021-12-16 04:08:36,970 INFO L471 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), 6 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 04:08:36,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1457 transitions. [2021-12-16 04:08:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-16 04:08:36,972 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:36,972 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:36,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-16 04:08:36,972 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:36,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:36,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1850212731, now seen corresponding path program 1 times [2021-12-16 04:08:36,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:36,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785146286] [2021-12-16 04:08:36,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:36,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 04:08:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 04:08:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:08:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-16 04:08:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-16 04:08:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-16 04:08:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-12-16 04:08:37,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:37,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785146286] [2021-12-16 04:08:37,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785146286] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:08:37,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96076295] [2021-12-16 04:08:37,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:37,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:08:37,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:08:37,141 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) [2021-12-16 04:08:37,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 04:08:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:37,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 2592 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-16 04:08:37,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:08:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-16 04:08:37,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:08:37,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96076295] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:37,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 04:08:37,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2021-12-16 04:08:37,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611074869] [2021-12-16 04:08:37,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:37,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:08:37,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:37,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:08:37,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:08:37,735 INFO L87 Difference]: Start difference. First operand 1051 states and 1457 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:08:37,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:37,820 INFO L93 Difference]: Finished difference Result 2157 states and 2991 transitions. [2021-12-16 04:08:37,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:08:37,835 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 111 [2021-12-16 04:08:37,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:37,839 INFO L225 Difference]: With dead ends: 2157 [2021-12-16 04:08:37,839 INFO L226 Difference]: Without dead ends: 1120 [2021-12-16 04:08:37,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:08:37,841 INFO L933 BasicCegarLoop]: 606 mSDtfsCounter, 96 mSDsluCounter, 1105 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:37,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 1711 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 04:08:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2021-12-16 04:08:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1109. [2021-12-16 04:08:37,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1109 states, 930 states have (on average 1.389247311827957) internal successors, (1292), 934 states have internal predecessors, (1292), 124 states have call successors, (124), 55 states have call predecessors, (124), 54 states have return successors, (123), 121 states have call predecessors, (123), 123 states have call successors, (123) [2021-12-16 04:08:37,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1539 transitions. [2021-12-16 04:08:37,885 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1539 transitions. Word has length 111 [2021-12-16 04:08:37,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:37,885 INFO L470 AbstractCegarLoop]: Abstraction has 1109 states and 1539 transitions. [2021-12-16 04:08:37,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:08:37,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1539 transitions. [2021-12-16 04:08:37,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-16 04:08:37,888 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:37,888 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:37,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-16 04:08:38,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:08:38,103 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:38,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:38,104 INFO L85 PathProgramCache]: Analyzing trace with hash -14744375, now seen corresponding path program 1 times [2021-12-16 04:08:38,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:38,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628063692] [2021-12-16 04:08:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:38,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:38,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-16 04:08:38,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-16 04:08:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-16 04:08:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-16 04:08:38,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-16 04:08:38,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-16 04:08:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-16 04:08:38,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,274 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2021-12-16 04:08:38,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:38,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628063692] [2021-12-16 04:08:38,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628063692] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:08:38,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14576217] [2021-12-16 04:08:38,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:38,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:08:38,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:08:38,292 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) [2021-12-16 04:08:38,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 04:08:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:38,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 2707 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-16 04:08:38,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:08:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-12-16 04:08:38,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:08:38,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14576217] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:38,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 04:08:38,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2021-12-16 04:08:38,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503041120] [2021-12-16 04:08:38,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:38,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:08:38,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:08:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:08:38,940 INFO L87 Difference]: Start difference. First operand 1109 states and 1539 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:08:39,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:39,050 INFO L93 Difference]: Finished difference Result 2211 states and 3069 transitions. [2021-12-16 04:08:39,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 04:08:39,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 122 [2021-12-16 04:08:39,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:39,054 INFO L225 Difference]: With dead ends: 2211 [2021-12-16 04:08:39,054 INFO L226 Difference]: Without dead ends: 1110 [2021-12-16 04:08:39,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:08:39,056 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 2 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:39,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1524 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 04:08:39,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2021-12-16 04:08:39,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1110. [2021-12-16 04:08:39,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 931 states have (on average 1.3888292158968851) internal successors, (1293), 935 states have internal predecessors, (1293), 124 states have call successors, (124), 55 states have call predecessors, (124), 54 states have return successors, (123), 121 states have call predecessors, (123), 123 states have call successors, (123) [2021-12-16 04:08:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1540 transitions. [2021-12-16 04:08:39,134 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1540 transitions. Word has length 122 [2021-12-16 04:08:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:39,134 INFO L470 AbstractCegarLoop]: Abstraction has 1110 states and 1540 transitions. [2021-12-16 04:08:39,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-16 04:08:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1540 transitions. [2021-12-16 04:08:39,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-16 04:08:39,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:39,137 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:39,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 04:08:39,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-16 04:08:39,359 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:39,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:39,359 INFO L85 PathProgramCache]: Analyzing trace with hash -1166660575, now seen corresponding path program 1 times [2021-12-16 04:08:39,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:39,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563151765] [2021-12-16 04:08:39,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:39,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:39,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-16 04:08:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2021-12-16 04:08:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-16 04:08:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 04:08:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 04:08:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-16 04:08:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-16 04:08:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:39,629 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-16 04:08:39,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:39,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563151765] [2021-12-16 04:08:39,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563151765] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:08:39,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107790539] [2021-12-16 04:08:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:39,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:08:39,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:08:39,631 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 04:08:39,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 04:08:40,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:40,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 2737 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-16 04:08:40,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:08:40,309 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 55 proven. 1 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-16 04:08:40,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 04:08:40,558 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2021-12-16 04:08:40,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107790539] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 04:08:40,559 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 04:08:40,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2021-12-16 04:08:40,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550938566] [2021-12-16 04:08:40,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 04:08:40,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 04:08:40,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:40,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 04:08:40,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-12-16 04:08:40,560 INFO L87 Difference]: Start difference. First operand 1110 states and 1540 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 10 states have internal predecessors, (100), 2 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-16 04:08:41,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:41,072 INFO L93 Difference]: Finished difference Result 2223 states and 3089 transitions. [2021-12-16 04:08:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 04:08:41,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 10 states have internal predecessors, (100), 2 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 124 [2021-12-16 04:08:41,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:41,076 INFO L225 Difference]: With dead ends: 2223 [2021-12-16 04:08:41,076 INFO L226 Difference]: Without dead ends: 1119 [2021-12-16 04:08:41,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 262 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2021-12-16 04:08:41,078 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 89 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 3446 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:41,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 3446 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-16 04:08:41,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2021-12-16 04:08:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1113. [2021-12-16 04:08:41,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 934 states have (on average 1.3875802997858673) internal successors, (1296), 938 states have internal predecessors, (1296), 124 states have call successors, (124), 55 states have call predecessors, (124), 54 states have return successors, (123), 121 states have call predecessors, (123), 123 states have call successors, (123) [2021-12-16 04:08:41,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1543 transitions. [2021-12-16 04:08:41,110 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1543 transitions. Word has length 124 [2021-12-16 04:08:41,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:41,110 INFO L470 AbstractCegarLoop]: Abstraction has 1113 states and 1543 transitions. [2021-12-16 04:08:41,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 10 states have internal predecessors, (100), 2 states have call successors, (28), 4 states have call predecessors, (28), 5 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-16 04:08:41,110 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1543 transitions. [2021-12-16 04:08:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-12-16 04:08:41,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:41,112 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:41,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 04:08:41,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:08:41,327 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:41,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:41,328 INFO L85 PathProgramCache]: Analyzing trace with hash 53241033, now seen corresponding path program 2 times [2021-12-16 04:08:41,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:41,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787568282] [2021-12-16 04:08:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:41,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:41,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 04:08:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:08:41,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 04:08:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 04:08:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 04:08:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 04:08:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-16 04:08:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:41,637 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-16 04:08:41,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:41,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787568282] [2021-12-16 04:08:41,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787568282] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:41,637 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:41,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-16 04:08:41,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519508182] [2021-12-16 04:08:41,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:41,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-16 04:08:41,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:41,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-16 04:08:41,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-12-16 04:08:41,639 INFO L87 Difference]: Start difference. First operand 1113 states and 1543 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 11 states have internal predecessors, (78), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-16 04:08:43,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:43,106 INFO L93 Difference]: Finished difference Result 2829 states and 4097 transitions. [2021-12-16 04:08:43,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-16 04:08:43,106 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 11 states have internal predecessors, (78), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 130 [2021-12-16 04:08:43,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:43,115 INFO L225 Difference]: With dead ends: 2829 [2021-12-16 04:08:43,115 INFO L226 Difference]: Without dead ends: 2360 [2021-12-16 04:08:43,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2021-12-16 04:08:43,118 INFO L933 BasicCegarLoop]: 1339 mSDtfsCounter, 2841 mSDsluCounter, 6738 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 1191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2841 SdHoareTripleChecker+Valid, 8077 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1191 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:43,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2841 Valid, 8077 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1191 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 04:08:43,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2360 states. [2021-12-16 04:08:43,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2360 to 1116. [2021-12-16 04:08:43,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 937 states have (on average 1.3863393810032016) internal successors, (1299), 941 states have internal predecessors, (1299), 124 states have call successors, (124), 55 states have call predecessors, (124), 54 states have return successors, (123), 121 states have call predecessors, (123), 123 states have call successors, (123) [2021-12-16 04:08:43,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1546 transitions. [2021-12-16 04:08:43,166 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1546 transitions. Word has length 130 [2021-12-16 04:08:43,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:43,166 INFO L470 AbstractCegarLoop]: Abstraction has 1116 states and 1546 transitions. [2021-12-16 04:08:43,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 11 states have internal predecessors, (78), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-16 04:08:43,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1546 transitions. [2021-12-16 04:08:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-16 04:08:43,169 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:43,169 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:43,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-16 04:08:43,169 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:43,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:43,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1433788225, now seen corresponding path program 1 times [2021-12-16 04:08:43,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:43,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600581356] [2021-12-16 04:08:43,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:43,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-16 04:08:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 04:08:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-16 04:08:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 04:08:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-16 04:08:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-16 04:08:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-16 04:08:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-16 04:08:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-16 04:08:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-16 04:08:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-12-16 04:08:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,418 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-16 04:08:43,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 04:08:43,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600581356] [2021-12-16 04:08:43,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600581356] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 04:08:43,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43996508] [2021-12-16 04:08:43,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:43,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:08:43,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:08:43,420 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 04:08:43,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 04:08:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:43,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 2897 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 04:08:43,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:08:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-16 04:08:44,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:08:44,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43996508] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:44,079 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 04:08:44,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2021-12-16 04:08:44,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561140575] [2021-12-16 04:08:44,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:44,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:08:44,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 04:08:44,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:08:44,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-12-16 04:08:44,080 INFO L87 Difference]: Start difference. First operand 1116 states and 1546 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-16 04:08:44,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:44,290 INFO L93 Difference]: Finished difference Result 2628 states and 3613 transitions. [2021-12-16 04:08:44,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:08:44,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 138 [2021-12-16 04:08:44,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:44,296 INFO L225 Difference]: With dead ends: 2628 [2021-12-16 04:08:44,296 INFO L226 Difference]: Without dead ends: 1676 [2021-12-16 04:08:44,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-16 04:08:44,299 INFO L933 BasicCegarLoop]: 901 mSDtfsCounter, 598 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 2753 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:44,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 2753 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 04:08:44,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1676 states. [2021-12-16 04:08:44,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1676 to 1122. [2021-12-16 04:08:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 941 states have (on average 1.3868225292242295) internal successors, (1305), 945 states have internal predecessors, (1305), 126 states have call successors, (126), 55 states have call predecessors, (126), 54 states have return successors, (125), 123 states have call predecessors, (125), 125 states have call successors, (125) [2021-12-16 04:08:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1556 transitions. [2021-12-16 04:08:44,346 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1556 transitions. Word has length 138 [2021-12-16 04:08:44,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:44,346 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 1556 transitions. [2021-12-16 04:08:44,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-16 04:08:44,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1556 transitions. [2021-12-16 04:08:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-16 04:08:44,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:44,349 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:44,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 04:08:44,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 04:08:44,560 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:44,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:44,560 INFO L85 PathProgramCache]: Analyzing trace with hash 867034365, now seen corresponding path program 1 times [2021-12-16 04:08:44,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 04:08:44,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561302488] [2021-12-16 04:08:44,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:44,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 04:08:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 04:08:44,811 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 04:08:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 04:08:45,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 04:08:45,088 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-16 04:08:45,089 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 04:08:45,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-16 04:08:45,094 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:45,097 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 04:08:45,132 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-12-16 04:08:45,133 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-12-16 04:08:45,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:08:45 BoogieIcfgContainer [2021-12-16 04:08:45,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 04:08:45,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 04:08:45,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 04:08:45,273 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 04:08:45,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:08:30" (3/4) ... [2021-12-16 04:08:45,275 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 04:08:45,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 04:08:45,276 INFO L158 Benchmark]: Toolchain (without parser) took 16703.52ms. Allocated memory was 117.4MB in the beginning and 482.3MB in the end (delta: 364.9MB). Free memory was 78.7MB in the beginning and 251.6MB in the end (delta: -172.9MB). Peak memory consumption was 190.9MB. Max. memory is 16.1GB. [2021-12-16 04:08:45,276 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 77.6MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 04:08:45,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 843.60ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 71.9MB in the end (delta: 6.5MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2021-12-16 04:08:45,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.61ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 59.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-16 04:08:45,277 INFO L158 Benchmark]: Boogie Preprocessor took 103.85ms. Allocated memory is still 117.4MB. Free memory was 59.3MB in the beginning and 48.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-16 04:08:45,277 INFO L158 Benchmark]: RCFGBuilder took 1117.27ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 48.2MB in the beginning and 67.0MB in the end (delta: -18.8MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2021-12-16 04:08:45,278 INFO L158 Benchmark]: TraceAbstraction took 14511.22ms. Allocated memory was 159.4MB in the beginning and 482.3MB in the end (delta: 323.0MB). Free memory was 67.0MB in the beginning and 251.6MB in the end (delta: -184.6MB). Peak memory consumption was 138.2MB. Max. memory is 16.1GB. [2021-12-16 04:08:45,278 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 482.3MB. Free memory is still 251.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 04:08:45,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 77.6MB. Free memory was 36.5MB in the beginning and 36.4MB in the end (delta: 36.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 843.60ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 71.9MB in the end (delta: 6.5MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.61ms. Allocated memory is still 117.4MB. Free memory was 71.9MB in the beginning and 59.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.85ms. Allocated memory is still 117.4MB. Free memory was 59.3MB in the beginning and 48.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1117.27ms. Allocated memory was 117.4MB in the beginning and 159.4MB in the end (delta: 41.9MB). Free memory was 48.2MB in the beginning and 67.0MB in the end (delta: -18.8MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * TraceAbstraction took 14511.22ms. Allocated memory was 159.4MB in the beginning and 482.3MB in the end (delta: 323.0MB). Free memory was 67.0MB in the beginning and 251.6MB in the end (delta: -184.6MB). Peak memory consumption was 138.2MB. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 482.3MB. Free memory is still 251.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 3359]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 3515, overapproximation of bitwiseOr at line 3430. Possible FailurePath: [L3435] int LDV_IN_INTERRUPT = 1; [L3436] int ldv_state_variable_2 ; [L3437] int ref_cnt ; [L3438] struct usb_serial *qcdevice_group1 ; [L3439] int ldv_state_variable_1 ; [L3440] struct usb_interface *qcdriver_group1 ; [L3441] int usb_counter ; [L3442] struct tty_struct *qcdevice_group0 ; [L3443] struct usb_serial_port *qcdevice_group2 ; [L3444] int ldv_state_variable_0 ; [L3560] static int debug ; [L3561-L3734] static struct usb_device_id const id_table[59U] = { {3U, 1478U, 37393U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37394U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 7965U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 8221U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1242U, 9485U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1242U, 9484U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33138U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33137U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5136U, 40961U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5136U, 40968U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2821U, 6006U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2821U, 6004U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6610U, 65523U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6610U, 65522U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5463U, 2688U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 36865U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 36866U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37378U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37379U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37410U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 36872U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37377U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37409U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37425U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8005U, 1U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33157U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33158U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37384U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37387U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37412U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37413U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37444U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37445U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 9245U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1008U, 9501U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37396U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37397U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37476U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37477U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37428U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37429U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37492U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37493U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36864U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36865U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36866U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36867U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36868U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36869U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36870U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36871U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36872U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36873U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4505U, 36874U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5848U, 32769U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5848U, 32770U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37380U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1478U, 37381U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L3735] struct usb_device_id const __mod_usb_device_table ; [L3736-L3750] static struct usb_driver qcdriver = {"qcserial", & usb_serial_probe, & usb_serial_disconnect, 0, & usb_serial_suspend, & usb_serial_resume, 0, 0, 0, (struct usb_device_id const *)(& id_table), {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, 1U, (unsigned char)0}; [L3908-L3914] static struct usb_serial_driver qcdevice = {"Qualcomm USB modem", (struct usb_device_id const *)(& id_table), 1, {0, 0}, {"qcserial", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0}, & qcdriver, {{{{{0U}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, 0UL, 0UL, & qcprobe, & usb_wwan_startup, 0, & usb_wwan_disconnect, & qc_release, 0, 0, & usb_wwan_suspend, & usb_wwan_resume, & usb_wwan_open, & usb_wwan_close, & usb_wwan_write, & usb_wwan_write_room, 0, 0, 0, & usb_wwan_chars_in_buffer, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L3942] int ldv_retval_9 ; [L3943] int ldv_retval_2 ; [L3944] int ldv_retval_5 ; [L3945] int ldv_retval_0 ; [L3946] int ldv_retval_4 ; [L3947] int ldv_retval_6 ; [L3949] int ldv_retval_1 ; [L3951] int ldv_retval_8 ; [L3952] int ldv_retval_3 ; [L3953] int ldv_retval_7 ; [L4470] int ldv_alloc_count = 0; VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3980] struct usb_device_id *ldvarg1 ; [L3981] void *tmp ; [L3982] unsigned char *ldvarg3 ; [L3983] void *tmp___0 ; [L3984] pm_message_t ldvarg0 ; [L3985] int ldvarg2 ; [L3986] int tmp___1 ; [L3987] pm_message_t ldvarg4 ; [L3988] struct usb_device_id *ldvarg5 ; [L3989] void *tmp___2 ; [L3990] int tmp___3 ; [L3991] int tmp___4 ; [L3992] int tmp___5 ; [L3993] int tmp___6 ; VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={43:0}, ldvarg4={44:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3995] CALL, EXPR ldv_zalloc(24UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3324] void *p ; [L3325] void *tmp ; [L3326] int tmp___0 ; [L3328] tmp___0 = __VERIFIER_nondet_int() [L3329] COND TRUE tmp___0 != 0 [L3330] return ((void *)0); VAL [\old(size)=24, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=24, tmp___0=-2, usb_counter=0] [L3995] RET, EXPR ldv_zalloc(24UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(24UL)={0:0}, ldvarg0={43:0}, ldvarg4={44:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3995] tmp = ldv_zalloc(24UL) [L3996] ldvarg1 = (struct usb_device_id *)tmp VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg4={44:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, usb_counter=0] [L3997] CALL, EXPR ldv_zalloc(1UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3324] void *p ; [L3325] void *tmp ; [L3326] int tmp___0 ; [L3328] tmp___0 = __VERIFIER_nondet_int() [L3329] COND TRUE tmp___0 != 0 [L3330] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=1, tmp___0=-3, usb_counter=0] [L3997] RET, EXPR ldv_zalloc(1UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(1UL)={0:0}, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg4={44:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, usb_counter=0] [L3997] tmp___0 = ldv_zalloc(1UL) [L3998] ldvarg3 = (unsigned char *)tmp___0 [L3999] tmp___1 = __VERIFIER_nondet_int() [L4000] ldvarg2 = tmp___1 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, usb_counter=0] [L4001] CALL, EXPR ldv_zalloc(24UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3324] void *p ; [L3325] void *tmp ; [L3326] int tmp___0 ; [L3328] tmp___0 = __VERIFIER_nondet_int() [L3329] COND TRUE tmp___0 != 0 [L3330] return ((void *)0); VAL [\old(size)=24, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=24, tmp___0=-5, usb_counter=0] [L4001] RET, EXPR ldv_zalloc(24UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_zalloc(24UL)={0:0}, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, usb_counter=0] [L4001] tmp___2 = ldv_zalloc(24UL) [L4002] ldvarg5 = (struct usb_device_id *)tmp___2 [L4003] FCALL ldv_initialize() [L4004] FCALL memset((void *)(& ldvarg0), 0, 4UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, memset((void *)(& ldvarg0), 0, 4UL)={43:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, usb_counter=0] [L4005] FCALL memset((void *)(& ldvarg4), 0, 4UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, memset((void *)(& ldvarg4), 0, 4UL)={44:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, usb_counter=0] [L4006] ldv_state_variable_1 = 0 [L4007] ref_cnt = 0 [L4008] ldv_state_variable_0 = 1 [L4009] ldv_state_variable_2 = 0 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, usb_counter=0] [L4011] tmp___3 = __VERIFIER_nondet_int() [L4013] case 0: [L4219] case 1: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, tmp___3=1, usb_counter=0] [L4220] COND TRUE ldv_state_variable_0 != 0 [L4221] tmp___5 = __VERIFIER_nondet_int() [L4223] case 0: [L4231] case 1: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, tmp___3=1, tmp___5=1, usb_counter=0] [L4232] COND TRUE ldv_state_variable_0 == 1 [L4233] CALL, EXPR qcinit() [L3917] int retval ; [L3919] CALL, EXPR usb_serial_register(& qcdevice) [L4535] return __VERIFIER_nondet_int(); [L3919] RET, EXPR usb_serial_register(& qcdevice) [L3919] retval = usb_serial_register(& qcdevice) [L3920] COND FALSE !(retval != 0) [L3924] CALL, EXPR usb_register(& qcdriver) [L3513] int tmp ; [L3515] CALL, EXPR ldv_usb_register_driver_2(driver, & __this_module, "qcserial") [L4347] ldv_func_ret_type ldv_func_res ; [L4348] int tmp ; [L4350] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4521] return __VERIFIER_nondet_int(); [L4350] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4350] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L4351] ldv_func_res = tmp [L4352] ldv_state_variable_2 = 1 [L4353] usb_counter = 0 [L4354] CALL ldv_usb_driver_2() [L3971] void *tmp ; VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3973] CALL, EXPR ldv_zalloc(1232UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3324] void *p ; [L3325] void *tmp ; [L3326] int tmp___0 ; [L3328] tmp___0 = __VERIFIER_nondet_int() [L3329] COND TRUE tmp___0 != 0 [L3330] return ((void *)0); VAL [\old(size)=1232, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=1232, tmp___0=-6, usb_counter=0] [L3973] RET, EXPR ldv_zalloc(1232UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ldv_zalloc(1232UL)={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3973] tmp = ldv_zalloc(1232UL) [L3974] qcdriver_group1 = (struct usb_interface *)tmp VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, usb_counter=0] [L4354] RET ldv_usb_driver_2() [L4355] return (ldv_func_res); VAL [\result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, ldv_func_arg1={32:0}, ldv_func_arg1={32:0}, ldv_func_arg2={65525:65528}, ldv_func_arg2={65525:65528}, ldv_func_arg3={3:0}, ldv_func_arg3={3:0}, ldv_func_res=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp=0, usb_counter=0] [L3515] RET, EXPR ldv_usb_register_driver_2(driver, & __this_module, "qcserial") [L3515] tmp = ldv_usb_register_driver_2(driver, & __this_module, "qcserial") [L3516] return (tmp); VAL [\result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, driver={32:0}, driver={32:0}, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp=0, usb_counter=0] [L3924] RET, EXPR usb_register(& qcdriver) [L3924] retval = usb_register(& qcdriver) [L3925] COND FALSE !(retval != 0) [L3930] return (0); VAL [\result=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=0, usb_counter=0] [L4233] RET, EXPR qcinit() [L4233] ldv_retval_5 = qcinit() [L4234] COND FALSE !(ldv_retval_5 != 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=1, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, tmp___3=1, tmp___5=1, usb_counter=0] [L4239] COND TRUE ldv_retval_5 == 0 [L4240] ldv_state_variable_0 = 2 [L4241] ldv_state_variable_1 = 1 [L4242] CALL ldv_initialize_usb_serial_driver_1() [L3956] void *tmp ; [L3957] void *tmp___0 ; [L3958] void *tmp___1 ; VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3960] CALL, EXPR ldv_zalloc(2696UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3324] void *p ; [L3325] void *tmp ; [L3326] int tmp___0 ; [L3328] tmp___0 = __VERIFIER_nondet_int() [L3329] COND TRUE tmp___0 != 0 [L3330] return ((void *)0); VAL [\old(size)=2696, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=2696, tmp___0=-7, usb_counter=0] [L3960] RET, EXPR ldv_zalloc(2696UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(2696UL)={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3960] tmp = ldv_zalloc(2696UL) [L3961] qcdevice_group0 = (struct tty_struct *)tmp VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, usb_counter=0] [L3962] CALL, EXPR ldv_zalloc(280UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3324] void *p ; [L3325] void *tmp ; [L3326] int tmp___0 ; [L3328] tmp___0 = __VERIFIER_nondet_int() [L3329] COND TRUE tmp___0 != 0 [L3330] return ((void *)0); VAL [\old(size)=280, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=280, tmp___0=-8, usb_counter=0] [L3962] RET, EXPR ldv_zalloc(280UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(280UL)={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, usb_counter=0] [L3962] tmp___0 = ldv_zalloc(280UL) [L3963] qcdevice_group1 = (struct usb_serial *)tmp___0 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, usb_counter=0] [L3964] CALL, EXPR ldv_zalloc(2304UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3324] void *p ; [L3325] void *tmp ; [L3326] int tmp___0 ; [L3328] tmp___0 = __VERIFIER_nondet_int() [L3329] COND TRUE tmp___0 != 0 [L3330] return ((void *)0); VAL [\old(size)=2304, \result={0:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=2304, tmp___0=-9, usb_counter=0] [L3964] RET, EXPR ldv_zalloc(2304UL) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_zalloc(2304UL)={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, usb_counter=0] [L3964] tmp___1 = ldv_zalloc(2304UL) [L3965] qcdevice_group2 = (struct usb_serial_port *)tmp___1 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1={0:0}, usb_counter=0] [L4242] RET ldv_initialize_usb_serial_driver_1() [L4011] tmp___3 = __VERIFIER_nondet_int() [L4013] case 0: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, tmp___3=0, tmp___5=1, usb_counter=0] [L4014] COND TRUE ldv_state_variable_1 != 0 [L4015] tmp___4 = __VERIFIER_nondet_int() [L4017] case 0: [L4031] case 1: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, tmp___3=0, tmp___4=1, tmp___5=1, usb_counter=0] [L4032] COND TRUE ldv_state_variable_1 == 1 [L4033] CALL, EXPR qcprobe(qcdevice_group1, (struct usb_device_id const *)ldvarg1) [L3753] struct usb_wwan_intf_private *data ; [L3754] struct usb_host_interface *intf ; [L3755] int retval ; [L3756] __u8 nintf ; [L3757] __u8 ifnum ; [L3758] void *tmp ; [L3759] struct lock_class_key __key ; [L3760] int tmp___0 ; [L3761] int tmp___1 ; [L3763] EXPR serial->interface [L3763] EXPR (serial->interface)->cur_altsetting [L3763] intf = (serial->interface)->cur_altsetting [L3764] retval = -19 VAL [__key={42:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id={0:0}, id={0:0}, id_table={31:0}, intf={65530:-13}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=-19, serial={0:0}, serial={0:0}, usb_counter=0] [L3765] COND FALSE !(debug != 0) VAL [__key={42:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id={0:0}, id={0:0}, id_table={31:0}, intf={65530:-13}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=-19, serial={0:0}, serial={0:0}, usb_counter=0] [L3770] EXPR serial->dev [L3770] EXPR (serial->dev)->actconfig [L3770] EXPR ((serial->dev)->actconfig)->desc.bNumInterfaces [L3770] nintf = ((serial->dev)->actconfig)->desc.bNumInterfaces [L3771] COND FALSE !(debug != 0) VAL [__key={42:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id={0:0}, id={0:0}, id_table={31:0}, intf={65530:-13}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, nintf=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=-19, serial={0:0}, serial={0:0}, usb_counter=0] [L3776] EXPR intf->desc.bInterfaceNumber [L3776] ifnum = intf->desc.bInterfaceNumber [L3777] COND FALSE !(debug != 0) VAL [__key={42:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id={0:0}, id={0:0}, id_table={31:0}, ifnum=251, intf={65530:-13}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, nintf=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=-19, serial={0:0}, serial={0:0}, usb_counter=0] [L3782] CALL, EXPR kzalloc(96UL, 208U) [L4334] void *res ; [L4336] CALL, EXPR ldv_kzalloc_1(size, flags) [L3428] void *tmp ; [L3430] CALL, EXPR kmalloc(size, flags | 32768U) [L3420] void *tmp___2 ; [L3422] CALL, EXPR __kmalloc(size, flags) [L3415] CALL, EXPR ldv_malloc(size) [L3307] void *p ; [L3308] void *tmp ; [L3309] int tmp___0 ; [L3311] tmp___0 = __VERIFIER_nondet_int() [L3312] COND FALSE !(tmp___0 != 0) [L3315] tmp = malloc(size) [L3316] p = tmp VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, p={-18446744073709551617:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=96, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=0] [L3317] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3303] COND FALSE !(!cond) VAL [\old(cond)=1, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, cond=1, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3317] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, p={-18446744073709551617:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=96, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=0] [L3318] return (p); VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, p={-18446744073709551617:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=96, tmp={-18446744073709551617:0}, tmp___0=0, usb_counter=0] [L3415] RET, EXPR ldv_malloc(size) [L3415] return ldv_malloc(size); [L3422] RET, EXPR __kmalloc(size, flags) [L3422] tmp___2 = __kmalloc(size, flags) [L3423] return (tmp___2); VAL [\old(flags)=65529, \old(size)=96, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, flags=65529, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=96, tmp___2={-18446744073709551617:0}, usb_counter=0] [L3430] RET, EXPR kmalloc(size, flags | 32768U) [L3430] tmp = kmalloc(size, flags | 32768U) [L3431] return (tmp); VAL [\old(flags)=208, \old(size)=96, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, flags=208, id_table={31:0}, ldv_alloc_count=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, size=96, tmp={-18446744073709551617:0}, usb_counter=0] [L4336] RET, EXPR ldv_kzalloc_1(size, flags) [L4336] res = ldv_kzalloc_1(size, flags) [L4337] COND TRUE (unsigned long )res != (unsigned long )((void *)0) [L4338] CALL ldv_alloc() [L4474] ldv_alloc_count = ldv_alloc_count + 1 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L4338] RET ldv_alloc() [L4341] return (res); VAL [\old(flags)=208, \old(size)=96, \result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, flags=208, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, res={-18446744073709551617:0}, size=96, usb_counter=0] [L3782] RET, EXPR kzalloc(96UL, 208U) [L3782] tmp = kzalloc(96UL, 208U) [L3783] data = (struct usb_wwan_intf_private *)tmp VAL [__key={42:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, data={-18446744073709551617:0}, debug=0, id={0:0}, id={0:0}, id_table={31:0}, ifnum=251, intf={65530:-13}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, nintf=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=-19, serial={0:0}, serial={0:0}, tmp={-18446744073709551617:0}, usb_counter=0] [L3784] COND FALSE !((unsigned long )data == (unsigned long )((struct usb_wwan_intf_private *)0)) [L3788] CALL spinlock_check(& data->susp_lock) [L3402] return (& lock->ldv_5966.rlock); VAL [\result={-18446744073709551617:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, lock={-18446744073709551617:0}, lock={-18446744073709551617:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3788] RET spinlock_check(& data->susp_lock) [L3789-L3790] FCALL __raw_spin_lock_init(& data->susp_lock.ldv_5966.rlock, "&(&data->susp_lock)->rlock", & __key) [L3791] EXPR serial->dev [L3791] FCALL usb_enable_autosuspend(serial->dev) [L3793] case 1: [L3794] EXPR serial->interface [L3794] EXPR (serial->interface)->num_altsetting VAL [(serial->interface)->num_altsetting=45, __key={42:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, data={-18446744073709551617:0}, debug=0, id={0:0}, id={0:0}, id_table={31:0}, ifnum=251, intf={65530:-13}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, nintf=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=-19, serial={0:0}, serial={0:0}, serial->interface={65527:0}, tmp={-18446744073709551617:0}, usb_counter=0] [L3794] COND FALSE !((serial->interface)->num_altsetting == 2U) [L3797] EXPR serial->interface [L3797] EXPR (serial->interface)->num_altsetting VAL [(serial->interface)->num_altsetting=45, __key={42:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, data={-18446744073709551617:0}, debug=0, id={0:0}, id={0:0}, id_table={31:0}, ifnum=251, intf={65530:-13}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, nintf=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=-19, serial={0:0}, serial={0:0}, serial->interface={65527:0}, tmp={-18446744073709551617:0}, usb_counter=0] [L3797] COND TRUE (serial->interface)->num_altsetting > 2U [L3883] COND FALSE !(retval != -19) VAL [__key={42:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, data={-18446744073709551617:0}, debug=0, id={0:0}, id={0:0}, id_table={31:0}, ifnum=251, intf={65530:-13}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, nintf=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=-19, serial={0:0}, serial={0:0}, tmp={-18446744073709551617:0}, usb_counter=0] [L3887] return (retval); [L3887] return (retval); VAL [\result=-19, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, data={-18446744073709551617:0}, debug=0, id={0:0}, id={0:0}, id_table={31:0}, ifnum=251, intf={65530:-13}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, nintf=1, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, retval=-19, serial={0:0}, serial={0:0}, tmp={-18446744073709551617:0}, usb_counter=0] [L4033] RET, EXPR qcprobe(qcdevice_group1, (struct usb_device_id const *)ldvarg1) [L4033] ldv_retval_4 = qcprobe(qcdevice_group1, (struct usb_device_id const *)ldvarg1) [L4034] COND FALSE !(ldv_retval_4 == 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=-19, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, tmp___3=0, tmp___4=1, tmp___5=1, usb_counter=0] [L4011] tmp___3 = __VERIFIER_nondet_int() [L4013] case 0: [L4219] case 1: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=-19, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, tmp___3=1, tmp___4=1, tmp___5=1, usb_counter=0] [L4220] COND TRUE ldv_state_variable_0 != 0 [L4221] tmp___5 = __VERIFIER_nondet_int() [L4223] case 0: VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=-19, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, tmp___3=1, tmp___4=1, tmp___5=0, usb_counter=0] [L4224] COND TRUE ldv_state_variable_0 == 2 && ref_cnt == 0 [L4225] CALL qcexit() [L3936] CALL ldv_usb_deregister_13(& qcdriver) [L4465] FCALL usb_deregister(arg) [L4466] ldv_state_variable_2 = 0 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, arg={32:0}, arg={32:0}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=-19, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3936] RET ldv_usb_deregister_13(& qcdriver) [L3937] FCALL usb_serial_deregister(& qcdevice) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=-19, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L4225] RET qcexit() [L4226] ldv_state_variable_0 = 3 VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=-19, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldvarg0={43:0}, ldvarg1={0:0}, ldvarg2=-4, ldvarg3={0:0}, ldvarg4={44:0}, ldvarg5={0:0}, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, tmp={0:0}, tmp___0={0:0}, tmp___1=-4, tmp___2={0:0}, tmp___3=1, tmp___4=1, tmp___5=0, usb_counter=0] [L4327] CALL ldv_check_final_state() [L4488] COND FALSE !(ldv_alloc_count == 0) VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=-19, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L4490] CALL ldv_error() VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=-19, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] [L3359] reach_error() VAL [__mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __this_module={65525:65528}, debug=0, id_table={31:0}, ldv_alloc_count=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=-19, ldv_retval_5=0, ldv_retval_6=0, ldv_retval_7=0, ldv_retval_8=0, ldv_retval_9=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, qcdevice={33:0}, qcdevice_group0={0:0}, qcdevice_group1={0:0}, qcdevice_group2={0:0}, qcdriver={32:0}, qcdriver_group1={0:0}, ref_cnt=0, usb_counter=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 377 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.3s, OverallIterations: 13, TraceHistogramMax: 8, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8344 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8097 mSDsluCounter, 33174 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24799 mSDsCounter, 3000 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4524 IncrementalHoareTripleChecker+Invalid, 7524 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3000 mSolverCounterUnsat, 8375 mSDtfsCounter, 4524 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 956 GetRequests, 837 SyntacticMatches, 2 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1122occurred in iteration=12, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 3124 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 1904 NumberOfCodeBlocks, 1904 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1873 ConstructedInterpolants, 0 QuantifiedInterpolants, 3566 SizeOfPredicates, 6 NumberOfNonLiveVariables, 10933 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 1458/1486 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-16 04:08:45,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8a07fe1a25f7f87a80e2b435a79d4715298ae698f37888069e22026322224ef --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 04:08:47,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 04:08:47,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 04:08:47,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 04:08:47,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 04:08:47,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 04:08:47,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 04:08:47,088 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 04:08:47,090 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 04:08:47,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 04:08:47,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 04:08:47,093 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 04:08:47,094 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 04:08:47,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 04:08:47,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 04:08:47,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 04:08:47,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 04:08:47,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 04:08:47,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 04:08:47,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 04:08:47,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 04:08:47,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 04:08:47,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 04:08:47,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 04:08:47,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 04:08:47,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 04:08:47,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 04:08:47,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 04:08:47,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 04:08:47,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 04:08:47,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 04:08:47,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 04:08:47,119 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 04:08:47,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 04:08:47,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 04:08:47,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 04:08:47,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 04:08:47,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 04:08:47,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 04:08:47,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 04:08:47,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 04:08:47,123 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-16 04:08:47,144 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 04:08:47,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 04:08:47,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 04:08:47,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 04:08:47,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 04:08:47,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 04:08:47,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 04:08:47,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 04:08:47,149 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 04:08:47,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 04:08:47,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 04:08:47,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 04:08:47,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 04:08:47,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 04:08:47,151 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-16 04:08:47,151 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-16 04:08:47,151 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-16 04:08:47,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 04:08:47,151 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 04:08:47,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 04:08:47,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 04:08:47,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 04:08:47,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 04:08:47,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:08:47,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 04:08:47,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 04:08:47,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 04:08:47,153 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-16 04:08:47,153 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-16 04:08:47,153 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 04:08:47,153 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 04:08:47,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 04:08:47,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 04:08:47,154 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-16 04:08:47,154 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8a07fe1a25f7f87a80e2b435a79d4715298ae698f37888069e22026322224ef [2021-12-16 04:08:47,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 04:08:47,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 04:08:47,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 04:08:47,459 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 04:08:47,460 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 04:08:47,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-12-16 04:08:47,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/794d4c660/6ff51f983a2a48b8bb3a5c0d5b4601d0/FLAGe504e340a [2021-12-16 04:08:48,022 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 04:08:48,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-12-16 04:08:48,047 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/794d4c660/6ff51f983a2a48b8bb3a5c0d5b4601d0/FLAGe504e340a [2021-12-16 04:08:48,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/794d4c660/6ff51f983a2a48b8bb3a5c0d5b4601d0 [2021-12-16 04:08:48,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 04:08:48,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 04:08:48,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 04:08:48,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 04:08:48,518 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 04:08:48,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:08:48" (1/1) ... [2021-12-16 04:08:48,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1951b207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:48, skipping insertion in model container [2021-12-16 04:08:48,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:08:48" (1/1) ... [2021-12-16 04:08:48,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 04:08:48,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:08:48,973 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-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-12-16 04:08:49,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:08:49,250 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-16 04:08:49,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 04:08:49,316 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-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-12-16 04:08:49,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:08:49,416 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 04:08:49,493 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-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-12-16 04:08:49,581 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 04:08:49,650 INFO L208 MainTranslator]: Completed translation [2021-12-16 04:08:49,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49 WrapperNode [2021-12-16 04:08:49,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 04:08:49,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 04:08:49,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 04:08:49,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 04:08:49,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,766 INFO L137 Inliner]: procedures = 105, calls = 1014, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 1743 [2021-12-16 04:08:49,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 04:08:49,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 04:08:49,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 04:08:49,774 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 04:08:49,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,856 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 04:08:49,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 04:08:49,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 04:08:49,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 04:08:49,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (1/1) ... [2021-12-16 04:08:49,907 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 04:08:49,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 04:08:49,925 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) [2021-12-16 04:08:49,945 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 [2021-12-16 04:08:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-16 04:08:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-16 04:08:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2021-12-16 04:08:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2021-12-16 04:08:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-16 04:08:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-16 04:08:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-12-16 04:08:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-12-16 04:08:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-12-16 04:08:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-12-16 04:08:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-16 04:08:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-16 04:08:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 04:08:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 04:08:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2021-12-16 04:08:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2021-12-16 04:08:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 04:08:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 04:08:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-16 04:08:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-16 04:08:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 04:08:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 04:08:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2021-12-16 04:08:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2021-12-16 04:08:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 04:08:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2021-12-16 04:08:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-16 04:08:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2021-12-16 04:08:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-16 04:08:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-16 04:08:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-16 04:08:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-16 04:08:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-12-16 04:08:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-12-16 04:08:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2021-12-16 04:08:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2021-12-16 04:08:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2021-12-16 04:08:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2021-12-16 04:08:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2021-12-16 04:08:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2021-12-16 04:08:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-16 04:08:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-16 04:08:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2021-12-16 04:08:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2021-12-16 04:08:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 04:08:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 04:08:50,218 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 04:08:50,220 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 04:08:50,311 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-16 04:08:51,373 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 04:08:51,383 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 04:08:51,385 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 04:08:51,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:08:51 BoogieIcfgContainer [2021-12-16 04:08:51,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 04:08:51,389 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 04:08:51,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 04:08:51,391 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 04:08:51,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:08:48" (1/3) ... [2021-12-16 04:08:51,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ac8b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:08:51, skipping insertion in model container [2021-12-16 04:08:51,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:08:49" (2/3) ... [2021-12-16 04:08:51,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ac8b76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:08:51, skipping insertion in model container [2021-12-16 04:08:51,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:08:51" (3/3) ... [2021-12-16 04:08:51,393 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-12-16 04:08:51,397 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 04:08:51,397 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 04:08:51,432 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 04:08:51,436 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 04:08:51,436 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 04:08:51,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 376 states, 283 states have (on average 1.4240282685512367) internal successors, (403), 291 states have internal predecessors, (403), 71 states have call successors, (71), 21 states have call predecessors, (71), 20 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2021-12-16 04:08:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-16 04:08:51,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:51,469 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:51,470 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:51,476 INFO L85 PathProgramCache]: Analyzing trace with hash 505290590, now seen corresponding path program 1 times [2021-12-16 04:08:51,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:08:51,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1254728627] [2021-12-16 04:08:51,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:51,489 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:08:51,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:08:51,491 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:08:51,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-16 04:08:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:52,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 1916 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-16 04:08:52,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:08:52,513 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-16 04:08:52,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:08:52,516 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:08:52,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1254728627] [2021-12-16 04:08:52,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1254728627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:52,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:52,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:08:52,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885496504] [2021-12-16 04:08:52,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:52,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:08:52,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:08:52,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:08:52,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:08:52,548 INFO L87 Difference]: Start difference. First operand has 376 states, 283 states have (on average 1.4240282685512367) internal successors, (403), 291 states have internal predecessors, (403), 71 states have call successors, (71), 21 states have call predecessors, (71), 20 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 04:08:52,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:52,641 INFO L93 Difference]: Finished difference Result 750 states and 1089 transitions. [2021-12-16 04:08:52,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 04:08:52,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2021-12-16 04:08:52,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:52,651 INFO L225 Difference]: With dead ends: 750 [2021-12-16 04:08:52,651 INFO L226 Difference]: Without dead ends: 365 [2021-12-16 04:08:52,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:08:52,657 INFO L933 BasicCegarLoop]: 534 mSDtfsCounter, 2 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1599 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:52,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1599 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 04:08:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-12-16 04:08:52,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-12-16 04:08:52,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 279 states have (on average 1.4014336917562724) internal successors, (391), 280 states have internal predecessors, (391), 66 states have call successors, (66), 20 states have call predecessors, (66), 19 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2021-12-16 04:08:52,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 522 transitions. [2021-12-16 04:08:52,706 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 522 transitions. Word has length 48 [2021-12-16 04:08:52,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:52,707 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 522 transitions. [2021-12-16 04:08:52,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-16 04:08:52,708 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 522 transitions. [2021-12-16 04:08:52,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-12-16 04:08:52,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:52,710 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:52,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-16 04:08:52,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:08:52,929 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:52,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:52,929 INFO L85 PathProgramCache]: Analyzing trace with hash 920442038, now seen corresponding path program 1 times [2021-12-16 04:08:52,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:08:52,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810995189] [2021-12-16 04:08:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:52,932 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:08:52,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:08:52,934 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:08:52,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-16 04:08:53,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:53,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 1938 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 04:08:53,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:08:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-16 04:08:53,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 04:08:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-16 04:08:54,057 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:08:54,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810995189] [2021-12-16 04:08:54,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1810995189] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 04:08:54,057 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-16 04:08:54,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-16 04:08:54,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823253887] [2021-12-16 04:08:54,057 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-16 04:08:54,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-16 04:08:54,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:08:54,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-16 04:08:54,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:08:54,059 INFO L87 Difference]: Start difference. First operand 365 states and 522 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 04:08:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:54,175 INFO L93 Difference]: Finished difference Result 727 states and 1042 transitions. [2021-12-16 04:08:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-16 04:08:54,176 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 50 [2021-12-16 04:08:54,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:54,178 INFO L225 Difference]: With dead ends: 727 [2021-12-16 04:08:54,178 INFO L226 Difference]: Without dead ends: 368 [2021-12-16 04:08:54,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-12-16 04:08:54,180 INFO L933 BasicCegarLoop]: 519 mSDtfsCounter, 9 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:54,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 2588 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 04:08:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-12-16 04:08:54,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2021-12-16 04:08:54,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 282 states have (on average 1.3971631205673758) internal successors, (394), 283 states have internal predecessors, (394), 66 states have call successors, (66), 20 states have call predecessors, (66), 19 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2021-12-16 04:08:54,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 525 transitions. [2021-12-16 04:08:54,199 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 525 transitions. Word has length 50 [2021-12-16 04:08:54,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:54,200 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 525 transitions. [2021-12-16 04:08:54,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-16 04:08:54,200 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 525 transitions. [2021-12-16 04:08:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-16 04:08:54,202 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:54,202 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:54,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-16 04:08:54,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:08:54,416 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:54,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:54,416 INFO L85 PathProgramCache]: Analyzing trace with hash -865894562, now seen corresponding path program 2 times [2021-12-16 04:08:54,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:08:54,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781530488] [2021-12-16 04:08:54,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 04:08:54,420 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:08:54,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:08:54,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:08:54,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-16 04:08:55,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-16 04:08:55,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 04:08:55,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 1859 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 04:08:55,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:08:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-16 04:08:55,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:08:55,238 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:08:55,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781530488] [2021-12-16 04:08:55,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781530488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:55,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:55,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 04:08:55,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249460105] [2021-12-16 04:08:55,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:55,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 04:08:55,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:08:55,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 04:08:55,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:08:55,241 INFO L87 Difference]: Start difference. First operand 368 states and 525 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 04:08:55,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:55,267 INFO L93 Difference]: Finished difference Result 705 states and 1015 transitions. [2021-12-16 04:08:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 04:08:55,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 56 [2021-12-16 04:08:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:55,271 INFO L225 Difference]: With dead ends: 705 [2021-12-16 04:08:55,272 INFO L226 Difference]: Without dead ends: 696 [2021-12-16 04:08:55,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:08:55,273 INFO L933 BasicCegarLoop]: 589 mSDtfsCounter, 464 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:55,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 1091 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 04:08:55,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2021-12-16 04:08:55,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 679. [2021-12-16 04:08:55,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 530 states have (on average 1.4169811320754717) internal successors, (751), 533 states have internal predecessors, (751), 113 states have call successors, (113), 36 states have call predecessors, (113), 35 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2021-12-16 04:08:55,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 976 transitions. [2021-12-16 04:08:55,303 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 976 transitions. Word has length 56 [2021-12-16 04:08:55,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:55,304 INFO L470 AbstractCegarLoop]: Abstraction has 679 states and 976 transitions. [2021-12-16 04:08:55,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 04:08:55,304 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 976 transitions. [2021-12-16 04:08:55,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-12-16 04:08:55,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:55,310 INFO L514 BasicCegarLoop]: trace histogram [8, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:55,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-16 04:08:55,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:08:55,516 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:55,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:55,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1553042684, now seen corresponding path program 1 times [2021-12-16 04:08:55,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:08:55,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987608957] [2021-12-16 04:08:55,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:55,519 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:08:55,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:08:55,520 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:08:55,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-16 04:08:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:56,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 04:08:56,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:08:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-16 04:08:56,681 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:08:56,682 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:08:56,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987608957] [2021-12-16 04:08:56,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987608957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:56,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:56,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 04:08:56,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768924180] [2021-12-16 04:08:56,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:56,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 04:08:56,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:08:56,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 04:08:56,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:08:56,684 INFO L87 Difference]: Start difference. First operand 679 states and 976 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 04:08:56,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:56,929 INFO L93 Difference]: Finished difference Result 1488 states and 2137 transitions. [2021-12-16 04:08:56,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 04:08:56,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 80 [2021-12-16 04:08:56,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:56,933 INFO L225 Difference]: With dead ends: 1488 [2021-12-16 04:08:56,934 INFO L226 Difference]: Without dead ends: 830 [2021-12-16 04:08:56,935 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:08:56,936 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 127 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:56,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 945 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 04:08:56,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2021-12-16 04:08:56,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 824. [2021-12-16 04:08:56,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 656 states have (on average 1.4222560975609757) internal successors, (933), 660 states have internal predecessors, (933), 124 states have call successors, (124), 44 states have call predecessors, (124), 43 states have return successors, (123), 121 states have call predecessors, (123), 123 states have call successors, (123) [2021-12-16 04:08:56,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1180 transitions. [2021-12-16 04:08:56,980 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1180 transitions. Word has length 80 [2021-12-16 04:08:56,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:56,981 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1180 transitions. [2021-12-16 04:08:56,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 04:08:56,982 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1180 transitions. [2021-12-16 04:08:56,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-16 04:08:56,984 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:56,985 INFO L514 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 3, 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] [2021-12-16 04:08:57,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-16 04:08:57,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:08:57,198 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:57,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:57,198 INFO L85 PathProgramCache]: Analyzing trace with hash -130895929, now seen corresponding path program 1 times [2021-12-16 04:08:57,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:08:57,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798769086] [2021-12-16 04:08:57,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:57,200 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:08:57,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:08:57,201 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:08:57,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-16 04:08:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:08:58,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 2170 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 04:08:58,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:08:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-16 04:08:58,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:08:58,448 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:08:58,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798769086] [2021-12-16 04:08:58,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798769086] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:08:58,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:08:58,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 04:08:58,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949475486] [2021-12-16 04:08:58,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:08:58,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 04:08:58,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:08:58,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 04:08:58,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 04:08:58,450 INFO L87 Difference]: Start difference. First operand 824 states and 1180 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-16 04:08:58,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:08:58,656 INFO L93 Difference]: Finished difference Result 2423 states and 3471 transitions. [2021-12-16 04:08:58,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 04:08:58,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 111 [2021-12-16 04:08:58,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:08:58,677 INFO L225 Difference]: With dead ends: 2423 [2021-12-16 04:08:58,677 INFO L226 Difference]: Without dead ends: 1614 [2021-12-16 04:08:58,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:08:58,679 INFO L933 BasicCegarLoop]: 999 mSDtfsCounter, 491 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:08:58,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [491 Valid, 2508 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 04:08:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1614 states. [2021-12-16 04:08:58,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1614 to 1493. [2021-12-16 04:08:58,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1188 states have (on average 1.4318181818181819) internal successors, (1701), 1198 states have internal predecessors, (1701), 226 states have call successors, (226), 79 states have call predecessors, (226), 78 states have return successors, (225), 219 states have call predecessors, (225), 225 states have call successors, (225) [2021-12-16 04:08:58,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2152 transitions. [2021-12-16 04:08:58,720 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2152 transitions. Word has length 111 [2021-12-16 04:08:58,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:08:58,720 INFO L470 AbstractCegarLoop]: Abstraction has 1493 states and 2152 transitions. [2021-12-16 04:08:58,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-12-16 04:08:58,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2152 transitions. [2021-12-16 04:08:58,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-16 04:08:58,723 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:08:58,723 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:08:58,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-16 04:08:58,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:08:58,939 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:08:58,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:08:58,940 INFO L85 PathProgramCache]: Analyzing trace with hash 47512075, now seen corresponding path program 1 times [2021-12-16 04:08:58,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:08:58,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400785371] [2021-12-16 04:08:58,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:08:58,942 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:08:58,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:08:58,943 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:08:58,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-16 04:09:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:09:00,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 2226 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 04:09:00,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:09:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-16 04:09:00,312 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:09:00,313 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:09:00,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400785371] [2021-12-16 04:09:00,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [400785371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:09:00,313 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:09:00,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 04:09:00,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43090893] [2021-12-16 04:09:00,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:09:00,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 04:09:00,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:09:00,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 04:09:00,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:09:00,314 INFO L87 Difference]: Start difference. First operand 1493 states and 2152 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-16 04:09:00,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:09:00,383 INFO L93 Difference]: Finished difference Result 2965 states and 4278 transitions. [2021-12-16 04:09:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 04:09:00,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 122 [2021-12-16 04:09:00,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:09:00,389 INFO L225 Difference]: With dead ends: 2965 [2021-12-16 04:09:00,389 INFO L226 Difference]: Without dead ends: 1493 [2021-12-16 04:09:00,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:09:00,393 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 451 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 04:09:00,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [451 Valid, 505 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 04:09:00,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2021-12-16 04:09:00,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1493. [2021-12-16 04:09:00,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1188 states have (on average 1.4048821548821548) internal successors, (1669), 1198 states have internal predecessors, (1669), 226 states have call successors, (226), 79 states have call predecessors, (226), 78 states have return successors, (225), 219 states have call predecessors, (225), 225 states have call successors, (225) [2021-12-16 04:09:00,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2120 transitions. [2021-12-16 04:09:00,442 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2120 transitions. Word has length 122 [2021-12-16 04:09:00,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:09:00,442 INFO L470 AbstractCegarLoop]: Abstraction has 1493 states and 2120 transitions. [2021-12-16 04:09:00,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 2 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-16 04:09:00,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2120 transitions. [2021-12-16 04:09:00,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-12-16 04:09:00,445 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:09:00,445 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:09:00,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-16 04:09:00,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:09:00,658 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:09:00,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:09:00,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2135315343, now seen corresponding path program 1 times [2021-12-16 04:09:00,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:09:00,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866288995] [2021-12-16 04:09:00,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:09:00,661 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:09:00,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:09:00,661 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:09:00,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-16 04:09:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:09:01,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 2226 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-16 04:09:01,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:09:02,053 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-16 04:09:02,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:09:02,053 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:09:02,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866288995] [2021-12-16 04:09:02,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [866288995] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:09:02,053 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:09:02,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-16 04:09:02,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682927721] [2021-12-16 04:09:02,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:09:02,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-16 04:09:02,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:09:02,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-16 04:09:02,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-16 04:09:02,054 INFO L87 Difference]: Start difference. First operand 1493 states and 2120 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-16 04:09:02,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:09:02,467 INFO L93 Difference]: Finished difference Result 3412 states and 5030 transitions. [2021-12-16 04:09:02,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:09:02,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 122 [2021-12-16 04:09:02,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:09:02,478 INFO L225 Difference]: With dead ends: 3412 [2021-12-16 04:09:02,478 INFO L226 Difference]: Without dead ends: 2671 [2021-12-16 04:09:02,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-12-16 04:09:02,481 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 1585 mSDsluCounter, 2736 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1585 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:09:02,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1585 Valid, 3557 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 04:09:02,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2021-12-16 04:09:02,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 1513. [2021-12-16 04:09:02,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 1208 states have (on average 1.3981788079470199) internal successors, (1689), 1218 states have internal predecessors, (1689), 226 states have call successors, (226), 79 states have call predecessors, (226), 78 states have return successors, (225), 219 states have call predecessors, (225), 225 states have call successors, (225) [2021-12-16 04:09:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2140 transitions. [2021-12-16 04:09:02,557 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2140 transitions. Word has length 122 [2021-12-16 04:09:02,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:09:02,558 INFO L470 AbstractCegarLoop]: Abstraction has 1513 states and 2140 transitions. [2021-12-16 04:09:02,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-16 04:09:02,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2140 transitions. [2021-12-16 04:09:02,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-16 04:09:02,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:09:02,563 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:09:02,600 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-16 04:09:02,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:09:02,787 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:09:02,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:09:02,788 INFO L85 PathProgramCache]: Analyzing trace with hash -81936154, now seen corresponding path program 1 times [2021-12-16 04:09:02,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:09:02,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [980739917] [2021-12-16 04:09:02,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:09:02,790 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:09:02,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:09:02,791 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:09:02,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-16 04:09:03,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:09:03,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 2232 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 04:09:03,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:09:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-16 04:09:04,018 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:09:04,018 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:09:04,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [980739917] [2021-12-16 04:09:04,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [980739917] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:09:04,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:09:04,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 04:09:04,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677185901] [2021-12-16 04:09:04,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:09:04,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 04:09:04,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:09:04,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 04:09:04,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:09:04,019 INFO L87 Difference]: Start difference. First operand 1513 states and 2140 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 04:09:04,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:09:04,417 INFO L93 Difference]: Finished difference Result 3490 states and 4996 transitions. [2021-12-16 04:09:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 04:09:04,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 129 [2021-12-16 04:09:04,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:09:04,425 INFO L225 Difference]: With dead ends: 3490 [2021-12-16 04:09:04,425 INFO L226 Difference]: Without dead ends: 1998 [2021-12-16 04:09:04,428 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:09:04,428 INFO L933 BasicCegarLoop]: 592 mSDtfsCounter, 321 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:09:04,428 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 840 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 04:09:04,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1998 states. [2021-12-16 04:09:04,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1998 to 1944. [2021-12-16 04:09:04,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1602 states have (on average 1.3913857677902621) internal successors, (2229), 1611 states have internal predecessors, (2229), 239 states have call successors, (239), 103 states have call predecessors, (239), 102 states have return successors, (238), 233 states have call predecessors, (238), 238 states have call successors, (238) [2021-12-16 04:09:04,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2706 transitions. [2021-12-16 04:09:04,507 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2706 transitions. Word has length 129 [2021-12-16 04:09:04,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:09:04,507 INFO L470 AbstractCegarLoop]: Abstraction has 1944 states and 2706 transitions. [2021-12-16 04:09:04,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-12-16 04:09:04,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2706 transitions. [2021-12-16 04:09:04,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-16 04:09:04,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:09:04,510 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:09:04,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-16 04:09:04,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:09:04,728 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:09:04,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:09:04,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1347562269, now seen corresponding path program 1 times [2021-12-16 04:09:04,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:09:04,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535357919] [2021-12-16 04:09:04,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:09:04,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:09:04,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:09:04,731 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:09:04,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-16 04:09:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:09:05,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 2243 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-16 04:09:05,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:09:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-16 04:09:06,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:09:06,397 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:09:06,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535357919] [2021-12-16 04:09:06,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535357919] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:09:06,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:09:06,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-16 04:09:06,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435525855] [2021-12-16 04:09:06,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:09:06,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 04:09:06,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:09:06,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 04:09:06,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2021-12-16 04:09:06,398 INFO L87 Difference]: Start difference. First operand 1944 states and 2706 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-16 04:09:08,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:09:08,422 INFO L93 Difference]: Finished difference Result 5808 states and 8422 transitions. [2021-12-16 04:09:08,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-16 04:09:08,424 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 128 [2021-12-16 04:09:08,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:09:08,438 INFO L225 Difference]: With dead ends: 5808 [2021-12-16 04:09:08,438 INFO L226 Difference]: Without dead ends: 3885 [2021-12-16 04:09:08,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2021-12-16 04:09:08,443 INFO L933 BasicCegarLoop]: 1202 mSDtfsCounter, 2526 mSDsluCounter, 8769 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 9971 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:09:08,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2584 Valid, 9971 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-16 04:09:08,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2021-12-16 04:09:08,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 1938. [2021-12-16 04:09:08,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1938 states, 1596 states have (on average 1.3903508771929824) internal successors, (2219), 1607 states have internal predecessors, (2219), 239 states have call successors, (239), 103 states have call predecessors, (239), 102 states have return successors, (238), 231 states have call predecessors, (238), 238 states have call successors, (238) [2021-12-16 04:09:08,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1938 states to 1938 states and 2696 transitions. [2021-12-16 04:09:08,568 INFO L78 Accepts]: Start accepts. Automaton has 1938 states and 2696 transitions. Word has length 128 [2021-12-16 04:09:08,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:09:08,568 INFO L470 AbstractCegarLoop]: Abstraction has 1938 states and 2696 transitions. [2021-12-16 04:09:08,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-16 04:09:08,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1938 states and 2696 transitions. [2021-12-16 04:09:08,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-16 04:09:08,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:09:08,571 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:09:08,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-12-16 04:09:08,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:09:08,791 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:09:08,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:09:08,792 INFO L85 PathProgramCache]: Analyzing trace with hash 870197329, now seen corresponding path program 1 times [2021-12-16 04:09:08,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:09:08,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903286896] [2021-12-16 04:09:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:09:08,794 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:09:08,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:09:08,795 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:09:08,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-16 04:09:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:09:10,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 2278 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 04:09:10,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:09:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-12-16 04:09:10,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:09:10,208 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:09:10,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903286896] [2021-12-16 04:09:10,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903286896] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:09:10,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:09:10,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 04:09:10,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833013557] [2021-12-16 04:09:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:09:10,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 04:09:10,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:09:10,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 04:09:10,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 04:09:10,210 INFO L87 Difference]: Start difference. First operand 1938 states and 2696 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:09:10,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:09:10,744 INFO L93 Difference]: Finished difference Result 6009 states and 8508 transitions. [2021-12-16 04:09:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-16 04:09:10,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 136 [2021-12-16 04:09:10,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:09:10,759 INFO L225 Difference]: With dead ends: 6009 [2021-12-16 04:09:10,759 INFO L226 Difference]: Without dead ends: 4092 [2021-12-16 04:09:10,763 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-16 04:09:10,764 INFO L933 BasicCegarLoop]: 998 mSDtfsCounter, 755 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 04:09:10,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [812 Valid, 3017 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 04:09:10,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4092 states. [2021-12-16 04:09:10,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4092 to 1954. [2021-12-16 04:09:10,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1954 states, 1612 states have (on average 1.3864764267990075) internal successors, (2235), 1619 states have internal predecessors, (2235), 239 states have call successors, (239), 103 states have call predecessors, (239), 102 states have return successors, (238), 231 states have call predecessors, (238), 238 states have call successors, (238) [2021-12-16 04:09:10,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2712 transitions. [2021-12-16 04:09:10,892 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2712 transitions. Word has length 136 [2021-12-16 04:09:10,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:09:10,892 INFO L470 AbstractCegarLoop]: Abstraction has 1954 states and 2712 transitions. [2021-12-16 04:09:10,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:09:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2712 transitions. [2021-12-16 04:09:10,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-16 04:09:10,895 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:09:10,895 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:09:10,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-16 04:09:11,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:09:11,107 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:09:11,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:09:11,108 INFO L85 PathProgramCache]: Analyzing trace with hash -150871025, now seen corresponding path program 1 times [2021-12-16 04:09:11,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:09:11,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361542077] [2021-12-16 04:09:11,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:09:11,110 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:09:11,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:09:11,111 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:09:11,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-16 04:09:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 04:09:12,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 2276 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 04:09:12,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 04:09:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-12-16 04:09:12,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 04:09:12,477 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 04:09:12,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361542077] [2021-12-16 04:09:12,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361542077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 04:09:12,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 04:09:12,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 04:09:12,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783247600] [2021-12-16 04:09:12,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 04:09:12,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 04:09:12,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 04:09:12,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 04:09:12,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:09:12,479 INFO L87 Difference]: Start difference. First operand 1954 states and 2712 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:09:12,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 04:09:12,678 INFO L93 Difference]: Finished difference Result 2995 states and 4177 transitions. [2021-12-16 04:09:12,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 04:09:12,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 136 [2021-12-16 04:09:12,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 04:09:12,682 INFO L225 Difference]: With dead ends: 2995 [2021-12-16 04:09:12,682 INFO L226 Difference]: Without dead ends: 1019 [2021-12-16 04:09:12,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 04:09:12,686 INFO L933 BasicCegarLoop]: 585 mSDtfsCounter, 408 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-16 04:09:12,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [408 Valid, 701 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-16 04:09:12,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2021-12-16 04:09:12,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1007. [2021-12-16 04:09:12,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 837 states have (on average 1.3906810035842294) internal successors, (1164), 839 states have internal predecessors, (1164), 119 states have call successors, (119), 51 states have call predecessors, (119), 50 states have return successors, (118), 116 states have call predecessors, (118), 118 states have call successors, (118) [2021-12-16 04:09:12,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1401 transitions. [2021-12-16 04:09:12,730 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1401 transitions. Word has length 136 [2021-12-16 04:09:12,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 04:09:12,730 INFO L470 AbstractCegarLoop]: Abstraction has 1007 states and 1401 transitions. [2021-12-16 04:09:12,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-16 04:09:12,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1401 transitions. [2021-12-16 04:09:12,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-16 04:09:12,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 04:09:12,733 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 04:09:12,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-12-16 04:09:12,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 04:09:12,947 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 04:09:12,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 04:09:12,948 INFO L85 PathProgramCache]: Analyzing trace with hash 867034365, now seen corresponding path program 1 times [2021-12-16 04:09:12,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 04:09:12,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [483557623] [2021-12-16 04:09:12,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 04:09:12,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 04:09:12,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 04:09:12,951 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 04:09:12,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-16 04:09:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 04:09:21,485 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.