./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.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 a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 03:54:37,545 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 03:54:37,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 03:54:37,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 03:54:37,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 03:54:37,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 03:54:37,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 03:54:37,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 03:54:37,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 03:54:37,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 03:54:37,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 03:54:37,592 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 03:54:37,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 03:54:37,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 03:54:37,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 03:54:37,600 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 03:54:37,602 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 03:54:37,604 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 03:54:37,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 03:54:37,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 03:54:37,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 03:54:37,612 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 03:54:37,613 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 03:54:37,614 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 03:54:37,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 03:54:37,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 03:54:37,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 03:54:37,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 03:54:37,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 03:54:37,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 03:54:37,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 03:54:37,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 03:54:37,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 03:54:37,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 03:54:37,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 03:54:37,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 03:54:37,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 03:54:37,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 03:54:37,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 03:54:37,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 03:54:37,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 03:54:37,624 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 03:54:37,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 03:54:37,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 03:54:37,647 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 03:54:37,647 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 03:54:37,648 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 03:54:37,648 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 03:54:37,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 03:54:37,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 03:54:37,649 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 03:54:37,649 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 03:54:37,649 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 03:54:37,650 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 03:54:37,650 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 03:54:37,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 03:54:37,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 03:54:37,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 03:54:37,658 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 03:54:37,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 03:54:37,659 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 03:54:37,659 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 03:54:37,659 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 03:54:37,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:54:37,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 03:54:37,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 03:54:37,660 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 03:54:37,660 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 03:54:37,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 03:54:37,660 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 03:54:37,661 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 03:54:37,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 03:54:37,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 03:54:37,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c [2021-12-18 03:54:37,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 03:54:37,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 03:54:37,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 03:54:37,888 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 03:54:37,888 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 03:54:37,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2021-12-18 03:54:37,932 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013c94f96/4e04f9e5ac1d4080b3ebadeef75a4c6b/FLAG5aefd28cd [2021-12-18 03:54:38,561 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 03:54:38,562 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2021-12-18 03:54:38,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013c94f96/4e04f9e5ac1d4080b3ebadeef75a4c6b/FLAG5aefd28cd [2021-12-18 03:54:38,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013c94f96/4e04f9e5ac1d4080b3ebadeef75a4c6b [2021-12-18 03:54:38,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 03:54:38,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 03:54:38,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 03:54:38,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 03:54:38,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 03:54:38,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:54:38" (1/1) ... [2021-12-18 03:54:38,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c1b8a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:38, skipping insertion in model container [2021-12-18 03:54:38,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:54:38" (1/1) ... [2021-12-18 03:54:38,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 03:54:38,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 03:54:39,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2021-12-18 03:54:39,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:54:39,836 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 03:54:39,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2021-12-18 03:54:40,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:54:40,114 INFO L208 MainTranslator]: Completed translation [2021-12-18 03:54:40,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40 WrapperNode [2021-12-18 03:54:40,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 03:54:40,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 03:54:40,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 03:54:40,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 03:54:40,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,289 INFO L137 Inliner]: procedures = 183, calls = 1615, calls flagged for inlining = 84, calls inlined = 65, statements flattened = 2934 [2021-12-18 03:54:40,290 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 03:54:40,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 03:54:40,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 03:54:40,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 03:54:40,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 03:54:40,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 03:54:40,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 03:54:40,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 03:54:40,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (1/1) ... [2021-12-18 03:54:40,428 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:54:40,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:54:40,449 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) [2021-12-18 03:54:40,467 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 [2021-12-18 03:54:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 03:54:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 03:54:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2021-12-18 03:54:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2021-12-18 03:54:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 03:54:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_5 [2021-12-18 03:54:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_5 [2021-12-18 03:54:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2021-12-18 03:54:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2021-12-18 03:54:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 03:54:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-18 03:54:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-18 03:54:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 03:54:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 03:54:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 03:54:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 03:54:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-18 03:54:40,481 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-18 03:54:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-18 03:54:40,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-18 03:54:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 03:54:40,481 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 03:54:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-18 03:54:40,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-18 03:54:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2021-12-18 03:54:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2021-12-18 03:54:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 03:54:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 03:54:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-18 03:54:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-18 03:54:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2021-12-18 03:54:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2021-12-18 03:54:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 03:54:40,483 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 03:54:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-18 03:54:40,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-18 03:54:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 03:54:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2021-12-18 03:54:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2021-12-18 03:54:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 03:54:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 03:54:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-18 03:54:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-18 03:54:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2021-12-18 03:54:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2021-12-18 03:54:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 03:54:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 03:54:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2021-12-18 03:54:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2021-12-18 03:54:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 03:54:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 03:54:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 03:54:40,485 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 03:54:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 03:54:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-12-18 03:54:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-12-18 03:54:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-12-18 03:54:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-12-18 03:54:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2021-12-18 03:54:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2021-12-18 03:54:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 03:54:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 03:54:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 03:54:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2021-12-18 03:54:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2021-12-18 03:54:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2021-12-18 03:54:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2021-12-18 03:54:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 03:54:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 03:54:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 03:54:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 03:54:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 03:54:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 03:54:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2021-12-18 03:54:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2021-12-18 03:54:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-18 03:54:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 03:54:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 03:54:40,490 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2021-12-18 03:54:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2021-12-18 03:54:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 03:54:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 03:54:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 03:54:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2021-12-18 03:54:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2021-12-18 03:54:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2021-12-18 03:54:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2021-12-18 03:54:40,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2021-12-18 03:54:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2021-12-18 03:54:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 03:54:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 03:54:40,492 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-18 03:54:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-18 03:54:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2021-12-18 03:54:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2021-12-18 03:54:40,493 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2021-12-18 03:54:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2021-12-18 03:54:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2021-12-18 03:54:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2021-12-18 03:54:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 03:54:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 03:54:40,494 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-18 03:54:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-18 03:54:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 03:54:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 03:54:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2021-12-18 03:54:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2021-12-18 03:54:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2021-12-18 03:54:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2021-12-18 03:54:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 03:54:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 03:54:40,495 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2021-12-18 03:54:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2021-12-18 03:54:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-18 03:54:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-18 03:54:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 03:54:40,496 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-18 03:54:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-18 03:54:40,497 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-18 03:54:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-18 03:54:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 03:54:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 03:54:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 03:54:40,500 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-18 03:54:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-18 03:54:40,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 03:54:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 03:54:40,995 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 03:54:40,997 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 03:54:41,160 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 03:54:41,739 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-12-18 03:54:57,594 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 03:54:57,605 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 03:54:57,606 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 03:54:57,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:54:57 BoogieIcfgContainer [2021-12-18 03:54:57,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 03:54:57,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 03:54:57,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 03:54:57,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 03:54:57,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:54:38" (1/3) ... [2021-12-18 03:54:57,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fc1f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:54:57, skipping insertion in model container [2021-12-18 03:54:57,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:54:40" (2/3) ... [2021-12-18 03:54:57,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fc1f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:54:57, skipping insertion in model container [2021-12-18 03:54:57,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:54:57" (3/3) ... [2021-12-18 03:54:57,627 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2021-12-18 03:54:57,631 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 03:54:57,631 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 03:54:57,674 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 03:54:57,685 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 [2021-12-18 03:54:57,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 03:54:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 591 states have (on average 1.3468697123519457) internal successors, (796), 617 states have internal predecessors, (796), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) [2021-12-18 03:54:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-18 03:54:57,728 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:54:57,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:54:57,729 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:54:57,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:54:57,733 INFO L85 PathProgramCache]: Analyzing trace with hash -753531349, now seen corresponding path program 1 times [2021-12-18 03:54:57,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:54:57,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875232462] [2021-12-18 03:54:57,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:54:57,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:54:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:54:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:54:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:54:58,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:54:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:54:58,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:54:58,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:54:58,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875232462] [2021-12-18 03:54:58,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875232462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:54:58,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:54:58,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 03:54:58,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955623969] [2021-12-18 03:54:58,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:54:58,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 03:54:58,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:54:58,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 03:54:58,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:54:58,284 INFO L87 Difference]: Start difference. First operand has 836 states, 591 states have (on average 1.3468697123519457) internal successors, (796), 617 states have internal predecessors, (796), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-18 03:55:00,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:02,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:04,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:07,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:55:07,144 INFO L93 Difference]: Finished difference Result 2794 states and 4030 transitions. [2021-12-18 03:55:07,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 03:55:07,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-12-18 03:55:07,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:55:07,170 INFO L225 Difference]: With dead ends: 2794 [2021-12-18 03:55:07,171 INFO L226 Difference]: Without dead ends: 1941 [2021-12-18 03:55:07,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 03:55:07,182 INFO L933 BasicCegarLoop]: 1227 mSDtfsCounter, 2235 mSDsluCounter, 2101 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 1233 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1233 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-12-18 03:55:07,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2354 Valid, 3328 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1233 Valid, 1142 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2021-12-18 03:55:07,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2021-12-18 03:55:07,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1612. [2021-12-18 03:55:07,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1146 states have (on average 1.3342059336823735) internal successors, (1529), 1180 states have internal predecessors, (1529), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2021-12-18 03:55:07,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2248 transitions. [2021-12-18 03:55:07,362 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2248 transitions. Word has length 28 [2021-12-18 03:55:07,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:55:07,363 INFO L470 AbstractCegarLoop]: Abstraction has 1612 states and 2248 transitions. [2021-12-18 03:55:07,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-18 03:55:07,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2248 transitions. [2021-12-18 03:55:07,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-18 03:55:07,369 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:55:07,370 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:55:07,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 03:55:07,370 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:55:07,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:55:07,371 INFO L85 PathProgramCache]: Analyzing trace with hash -829331153, now seen corresponding path program 1 times [2021-12-18 03:55:07,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:55:07,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902475627] [2021-12-18 03:55:07,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:55:07,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:55:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:07,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:55:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:55:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:07,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:55:07,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:07,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 03:55:07,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:55:07,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902475627] [2021-12-18 03:55:07,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902475627] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:55:07,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:55:07,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 03:55:07,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055181838] [2021-12-18 03:55:07,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:55:07,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 03:55:07,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:55:07,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 03:55:07,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:55:07,563 INFO L87 Difference]: Start difference. First operand 1612 states and 2248 transitions. 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:09,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:11,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:13,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:55:13,164 INFO L93 Difference]: Finished difference Result 1967 states and 2756 transitions. [2021-12-18 03:55:13,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 03:55:13,165 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2021-12-18 03:55:13,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:55:13,173 INFO L225 Difference]: With dead ends: 1967 [2021-12-18 03:55:13,173 INFO L226 Difference]: Without dead ends: 1954 [2021-12-18 03:55:13,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 03:55:13,175 INFO L933 BasicCegarLoop]: 1079 mSDtfsCounter, 1688 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 712 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-18 03:55:13,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1785 Valid, 2174 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 566 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2021-12-18 03:55:13,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1954 states. [2021-12-18 03:55:13,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1954 to 1612. [2021-12-18 03:55:13,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1612 states, 1146 states have (on average 1.3333333333333333) internal successors, (1528), 1180 states have internal predecessors, (1528), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2021-12-18 03:55:13,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1612 states to 1612 states and 2247 transitions. [2021-12-18 03:55:13,242 INFO L78 Accepts]: Start accepts. Automaton has 1612 states and 2247 transitions. Word has length 38 [2021-12-18 03:55:13,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:55:13,243 INFO L470 AbstractCegarLoop]: Abstraction has 1612 states and 2247 transitions. [2021-12-18 03:55:13,243 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:13,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1612 states and 2247 transitions. [2021-12-18 03:55:13,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-18 03:55:13,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:55:13,246 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:55:13,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 03:55:13,250 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:55:13,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:55:13,251 INFO L85 PathProgramCache]: Analyzing trace with hash -772072851, now seen corresponding path program 1 times [2021-12-18 03:55:13,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:55:13,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607657099] [2021-12-18 03:55:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:55:13,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:55:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:13,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:55:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:13,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:55:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:13,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:55:13,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 03:55:13,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:55:13,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607657099] [2021-12-18 03:55:13,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607657099] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:55:13,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:55:13,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 03:55:13,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850347735] [2021-12-18 03:55:13,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:55:13,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 03:55:13,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:55:13,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 03:55:13,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:55:13,487 INFO L87 Difference]: Start difference. First operand 1612 states and 2247 transitions. 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:15,520 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:17,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:20,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:55:20,182 INFO L93 Difference]: Finished difference Result 5452 states and 7784 transitions. [2021-12-18 03:55:20,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 03:55:20,183 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2021-12-18 03:55:20,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:55:20,198 INFO L225 Difference]: With dead ends: 5452 [2021-12-18 03:55:20,198 INFO L226 Difference]: Without dead ends: 3858 [2021-12-18 03:55:20,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 03:55:20,204 INFO L933 BasicCegarLoop]: 1333 mSDtfsCounter, 2085 mSDsluCounter, 2214 mSDsCounter, 0 mSdLazyCounter, 1181 mSolverCounterSat, 1173 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2198 SdHoareTripleChecker+Valid, 3547 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1173 IncrementalHoareTripleChecker+Valid, 1181 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-18 03:55:20,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2198 Valid, 3547 Invalid, 2356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1173 Valid, 1181 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-12-18 03:55:20,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3858 states. [2021-12-18 03:55:20,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3858 to 3195. [2021-12-18 03:55:20,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3195 states, 2274 states have (on average 1.3324538258575198) internal successors, (3030), 2338 states have internal predecessors, (3030), 716 states have call successors, (716), 205 states have call predecessors, (716), 204 states have return successors, (745), 699 states have call predecessors, (745), 711 states have call successors, (745) [2021-12-18 03:55:20,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3195 states to 3195 states and 4491 transitions. [2021-12-18 03:55:20,326 INFO L78 Accepts]: Start accepts. Automaton has 3195 states and 4491 transitions. Word has length 38 [2021-12-18 03:55:20,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:55:20,327 INFO L470 AbstractCegarLoop]: Abstraction has 3195 states and 4491 transitions. [2021-12-18 03:55:20,327 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:20,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3195 states and 4491 transitions. [2021-12-18 03:55:20,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-18 03:55:20,328 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:55:20,328 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:55:20,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 03:55:20,328 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:55:20,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:55:20,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1835132963, now seen corresponding path program 1 times [2021-12-18 03:55:20,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:55:20,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138822624] [2021-12-18 03:55:20,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:55:20,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:55:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:20,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:55:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:20,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:55:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:20,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:55:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:20,550 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 03:55:20,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:55:20,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138822624] [2021-12-18 03:55:20,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138822624] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:55:20,551 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:55:20,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 03:55:20,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659133925] [2021-12-18 03:55:20,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:55:20,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 03:55:20,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:55:20,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 03:55:20,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:55:20,552 INFO L87 Difference]: Start difference. First operand 3195 states and 4491 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:22,586 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:24,604 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:55:27,182 INFO L93 Difference]: Finished difference Result 10841 states and 15828 transitions. [2021-12-18 03:55:27,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 03:55:27,182 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2021-12-18 03:55:27,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:55:27,219 INFO L225 Difference]: With dead ends: 10841 [2021-12-18 03:55:27,220 INFO L226 Difference]: Without dead ends: 7664 [2021-12-18 03:55:27,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 03:55:27,239 INFO L933 BasicCegarLoop]: 1298 mSDtfsCounter, 2191 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 1239 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 3497 SdHoareTripleChecker+Invalid, 2409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1239 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-12-18 03:55:27,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2295 Valid, 3497 Invalid, 2409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1239 Valid, 1168 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-12-18 03:55:27,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7664 states. [2021-12-18 03:55:27,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7664 to 6530. [2021-12-18 03:55:27,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6530 states, 4659 states have (on average 1.3243185232882593) internal successors, (6170), 4783 states have internal predecessors, (6170), 1440 states have call successors, (1440), 407 states have call predecessors, (1440), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2021-12-18 03:55:27,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 9293 transitions. [2021-12-18 03:55:27,478 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 9293 transitions. Word has length 39 [2021-12-18 03:55:27,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:55:27,480 INFO L470 AbstractCegarLoop]: Abstraction has 6530 states and 9293 transitions. [2021-12-18 03:55:27,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:27,480 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 9293 transitions. [2021-12-18 03:55:27,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-18 03:55:27,481 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:55:27,481 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:55:27,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 03:55:27,482 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:55:27,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:55:27,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1054139440, now seen corresponding path program 1 times [2021-12-18 03:55:27,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:55:27,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945483153] [2021-12-18 03:55:27,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:55:27,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:55:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:27,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:55:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:27,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:55:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:27,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:55:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:27,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 03:55:27,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:55:27,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945483153] [2021-12-18 03:55:27,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945483153] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:55:27,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:55:27,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 03:55:27,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247447196] [2021-12-18 03:55:27,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:55:27,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 03:55:27,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:55:27,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 03:55:27,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:55:27,747 INFO L87 Difference]: Start difference. First operand 6530 states and 9293 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:29,781 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:31,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:34,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:55:34,238 INFO L93 Difference]: Finished difference Result 7662 states and 11141 transitions. [2021-12-18 03:55:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 03:55:34,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-12-18 03:55:34,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:55:34,273 INFO L225 Difference]: With dead ends: 7662 [2021-12-18 03:55:34,273 INFO L226 Difference]: Without dead ends: 7659 [2021-12-18 03:55:34,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 03:55:34,281 INFO L933 BasicCegarLoop]: 1293 mSDtfsCounter, 2191 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 1239 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 3491 SdHoareTripleChecker+Invalid, 2403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1239 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-18 03:55:34,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2295 Valid, 3491 Invalid, 2403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1239 Valid, 1162 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-12-18 03:55:34,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2021-12-18 03:55:34,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 6531. [2021-12-18 03:55:34,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6531 states, 4660 states have (on average 1.3242489270386266) internal successors, (6171), 4784 states have internal predecessors, (6171), 1440 states have call successors, (1440), 407 states have call predecessors, (1440), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2021-12-18 03:55:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6531 states to 6531 states and 9294 transitions. [2021-12-18 03:55:34,556 INFO L78 Accepts]: Start accepts. Automaton has 6531 states and 9294 transitions. Word has length 40 [2021-12-18 03:55:34,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:55:34,556 INFO L470 AbstractCegarLoop]: Abstraction has 6531 states and 9294 transitions. [2021-12-18 03:55:34,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6531 states and 9294 transitions. [2021-12-18 03:55:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-18 03:55:34,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:55:34,558 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:55:34,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 03:55:34,558 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:55:34,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:55:34,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1681818426, now seen corresponding path program 1 times [2021-12-18 03:55:34,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:55:34,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004534873] [2021-12-18 03:55:34,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:55:34,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:55:34,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:34,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:55:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:55:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:55:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 03:55:34,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:55:34,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004534873] [2021-12-18 03:55:34,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004534873] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:55:34,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:55:34,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 03:55:34,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623983133] [2021-12-18 03:55:34,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:55:34,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 03:55:34,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:55:34,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 03:55:34,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:55:34,755 INFO L87 Difference]: Start difference. First operand 6531 states and 9294 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:36,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:38,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:40,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:55:40,060 INFO L93 Difference]: Finished difference Result 7658 states and 11137 transitions. [2021-12-18 03:55:40,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:55:40,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2021-12-18 03:55:40,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:55:40,086 INFO L225 Difference]: With dead ends: 7658 [2021-12-18 03:55:40,086 INFO L226 Difference]: Without dead ends: 7655 [2021-12-18 03:55:40,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-18 03:55:40,090 INFO L933 BasicCegarLoop]: 1063 mSDtfsCounter, 1644 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 697 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-18 03:55:40,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1740 Valid, 2133 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [697 Valid, 566 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2021-12-18 03:55:40,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7655 states. [2021-12-18 03:55:40,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7655 to 6530. [2021-12-18 03:55:40,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6530 states, 4660 states have (on average 1.3240343347639485) internal successors, (6170), 4783 states have internal predecessors, (6170), 1439 states have call successors, (1439), 407 states have call predecessors, (1439), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2021-12-18 03:55:40,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 9292 transitions. [2021-12-18 03:55:40,298 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 9292 transitions. Word has length 41 [2021-12-18 03:55:40,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:55:40,300 INFO L470 AbstractCegarLoop]: Abstraction has 6530 states and 9292 transitions. [2021-12-18 03:55:40,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:40,300 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 9292 transitions. [2021-12-18 03:55:40,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-18 03:55:40,302 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:55:40,302 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:55:40,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 03:55:40,302 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:55:40,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:55:40,303 INFO L85 PathProgramCache]: Analyzing trace with hash -597161485, now seen corresponding path program 1 times [2021-12-18 03:55:40,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:55:40,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005885754] [2021-12-18 03:55:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:55:40,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:55:40,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:40,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:55:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:40,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:55:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:40,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:55:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:40,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-18 03:55:40,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:55:40,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005885754] [2021-12-18 03:55:40,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005885754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:55:40,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:55:40,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 03:55:40,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177084791] [2021-12-18 03:55:40,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:55:40,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 03:55:40,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:55:40,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 03:55:40,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:55:40,464 INFO L87 Difference]: Start difference. First operand 6530 states and 9292 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:42,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:44,511 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:45,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:55:45,814 INFO L93 Difference]: Finished difference Result 7657 states and 11135 transitions. [2021-12-18 03:55:45,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:55:45,815 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2021-12-18 03:55:45,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:55:45,841 INFO L225 Difference]: With dead ends: 7657 [2021-12-18 03:55:45,841 INFO L226 Difference]: Without dead ends: 7645 [2021-12-18 03:55:45,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-18 03:55:45,846 INFO L933 BasicCegarLoop]: 1062 mSDtfsCounter, 1639 mSDsluCounter, 1072 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 692 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 692 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-18 03:55:45,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1734 Valid, 2134 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [692 Valid, 566 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2021-12-18 03:55:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7645 states. [2021-12-18 03:55:46,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7645 to 6520. [2021-12-18 03:55:46,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6520 states, 4651 states have (on average 1.3238013330466567) internal successors, (6157), 4773 states have internal predecessors, (6157), 1438 states have call successors, (1438), 407 states have call predecessors, (1438), 430 states have return successors, (1683), 1435 states have call predecessors, (1683), 1435 states have call successors, (1683) [2021-12-18 03:55:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6520 states to 6520 states and 9278 transitions. [2021-12-18 03:55:46,058 INFO L78 Accepts]: Start accepts. Automaton has 6520 states and 9278 transitions. Word has length 42 [2021-12-18 03:55:46,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:55:46,058 INFO L470 AbstractCegarLoop]: Abstraction has 6520 states and 9278 transitions. [2021-12-18 03:55:46,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:55:46,059 INFO L276 IsEmpty]: Start isEmpty. Operand 6520 states and 9278 transitions. [2021-12-18 03:55:46,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-18 03:55:46,064 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:55:46,064 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:55:46,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 03:55:46,065 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:55:46,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:55:46,065 INFO L85 PathProgramCache]: Analyzing trace with hash 389542365, now seen corresponding path program 1 times [2021-12-18 03:55:46,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:55:46,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956684966] [2021-12-18 03:55:46,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:55:46,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:55:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:55:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:55:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-18 03:55:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:55:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 03:55:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 03:55:46,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 03:55:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 03:55:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 03:55:46,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:55:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 03:55:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:55:46,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 03:55:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 03:55:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 03:55:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 03:55:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:46,461 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-18 03:55:46,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:55:46,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956684966] [2021-12-18 03:55:46,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956684966] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:55:46,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:55:46,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 03:55:46,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223103334] [2021-12-18 03:55:46,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:55:46,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 03:55:46,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:55:46,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 03:55:46,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-18 03:55:46,464 INFO L87 Difference]: Start difference. First operand 6520 states and 9278 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 03:55:48,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:50,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:52,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:54,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:55:58,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:55:58,086 INFO L93 Difference]: Finished difference Result 16735 states and 24732 transitions. [2021-12-18 03:55:58,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 03:55:58,086 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2021-12-18 03:55:58,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:55:58,128 INFO L225 Difference]: With dead ends: 16735 [2021-12-18 03:55:58,128 INFO L226 Difference]: Without dead ends: 10233 [2021-12-18 03:55:58,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-12-18 03:55:58,153 INFO L933 BasicCegarLoop]: 986 mSDtfsCounter, 1366 mSDsluCounter, 2908 mSDsCounter, 0 mSdLazyCounter, 2720 mSolverCounterSat, 661 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 2720 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2021-12-18 03:55:58,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1554 Valid, 3894 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [661 Valid, 2720 Invalid, 4 Unknown, 0 Unchecked, 11.1s Time] [2021-12-18 03:55:58,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10233 states. [2021-12-18 03:55:58,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10233 to 7386. [2021-12-18 03:55:58,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7386 states, 5286 states have (on average 1.3047673098751418) internal successors, (6897), 5428 states have internal predecessors, (6897), 1564 states have call successors, (1564), 408 states have call predecessors, (1564), 535 states have return successors, (2125), 1657 states have call predecessors, (2125), 1561 states have call successors, (2125) [2021-12-18 03:55:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7386 states to 7386 states and 10586 transitions. [2021-12-18 03:55:58,519 INFO L78 Accepts]: Start accepts. Automaton has 7386 states and 10586 transitions. Word has length 140 [2021-12-18 03:55:58,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:55:58,520 INFO L470 AbstractCegarLoop]: Abstraction has 7386 states and 10586 transitions. [2021-12-18 03:55:58,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 03:55:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 7386 states and 10586 transitions. [2021-12-18 03:55:58,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-18 03:55:58,526 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:55:58,526 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:55:58,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 03:55:58,526 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:55:58,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:55:58,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1020769219, now seen corresponding path program 1 times [2021-12-18 03:55:58,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:55:58,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563756125] [2021-12-18 03:55:58,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:55:58,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:55:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:55:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:55:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:55:58,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 03:55:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:55:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-18 03:55:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 03:55:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 03:55:58,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 03:55:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-18 03:55:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:55:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-18 03:55:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:55:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-18 03:55:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-18 03:55:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-18 03:55:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:55:58,892 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-18 03:55:58,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:55:58,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563756125] [2021-12-18 03:55:58,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563756125] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:55:58,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:55:58,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 03:55:58,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42502912] [2021-12-18 03:55:58,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:55:58,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 03:55:58,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:55:58,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 03:55:58,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-18 03:55:58,895 INFO L87 Difference]: Start difference. First operand 7386 states and 10586 transitions. Second operand has 10 states, 10 states have (on average 10.8) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 03:56:00,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:02,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:04,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:06,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:08,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:56:12,245 INFO L93 Difference]: Finished difference Result 18033 states and 26588 transitions. [2021-12-18 03:56:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 03:56:12,245 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2021-12-18 03:56:12,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:56:12,281 INFO L225 Difference]: With dead ends: 18033 [2021-12-18 03:56:12,281 INFO L226 Difference]: Without dead ends: 10669 [2021-12-18 03:56:12,304 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2021-12-18 03:56:12,304 INFO L933 BasicCegarLoop]: 989 mSDtfsCounter, 1679 mSDsluCounter, 2399 mSDsCounter, 0 mSdLazyCounter, 2417 mSolverCounterSat, 929 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 2417 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-12-18 03:56:12,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1875 Valid, 3388 Invalid, 3351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [929 Valid, 2417 Invalid, 5 Unknown, 0 Unchecked, 12.8s Time] [2021-12-18 03:56:12,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10669 states. [2021-12-18 03:56:12,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10669 to 7758. [2021-12-18 03:56:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7758 states, 5610 states have (on average 1.3033868092691623) internal successors, (7312), 5752 states have internal predecessors, (7312), 1580 states have call successors, (1580), 440 states have call predecessors, (1580), 567 states have return successors, (2117), 1673 states have call predecessors, (2117), 1577 states have call successors, (2117) [2021-12-18 03:56:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7758 states to 7758 states and 11009 transitions. [2021-12-18 03:56:12,689 INFO L78 Accepts]: Start accepts. Automaton has 7758 states and 11009 transitions. Word has length 149 [2021-12-18 03:56:12,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:56:12,690 INFO L470 AbstractCegarLoop]: Abstraction has 7758 states and 11009 transitions. [2021-12-18 03:56:12,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.8) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (17), 9 states have call predecessors, (17), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 03:56:12,690 INFO L276 IsEmpty]: Start isEmpty. Operand 7758 states and 11009 transitions. [2021-12-18 03:56:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-12-18 03:56:12,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:56:12,701 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:56:12,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 03:56:12,701 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:56:12,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:56:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1321931853, now seen corresponding path program 1 times [2021-12-18 03:56:12,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:56:12,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634224545] [2021-12-18 03:56:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:56:12,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:56:12,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:56:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:56:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:56:12,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 03:56:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 03:56:12,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 03:56:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:56:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 03:56:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 03:56:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:56:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 03:56:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 03:56:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 03:56:12,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:12,984 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-18 03:56:12,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:56:12,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634224545] [2021-12-18 03:56:12,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634224545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:56:12,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:56:12,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 03:56:12,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991862054] [2021-12-18 03:56:12,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:56:12,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 03:56:12,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:56:12,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 03:56:12,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 03:56:12,986 INFO L87 Difference]: Start difference. First operand 7758 states and 11009 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:56:15,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:17,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:19,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:21,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:56:21,888 INFO L93 Difference]: Finished difference Result 20593 states and 30594 transitions. [2021-12-18 03:56:21,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 03:56:21,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 156 [2021-12-18 03:56:21,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:56:21,937 INFO L225 Difference]: With dead ends: 20593 [2021-12-18 03:56:21,937 INFO L226 Difference]: Without dead ends: 12857 [2021-12-18 03:56:21,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-12-18 03:56:21,960 INFO L933 BasicCegarLoop]: 964 mSDtfsCounter, 1831 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 1562 mSolverCounterSat, 1482 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 3047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1482 IncrementalHoareTripleChecker+Valid, 1562 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-18 03:56:21,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1961 Valid, 3114 Invalid, 3047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1482 Valid, 1562 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2021-12-18 03:56:21,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12857 states. [2021-12-18 03:56:22,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12857 to 7852. [2021-12-18 03:56:22,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7852 states, 5650 states have (on average 1.3065486725663717) internal successors, (7382), 5792 states have internal predecessors, (7382), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 539 states have return successors, (1963), 1735 states have call predecessors, (1963), 1659 states have call successors, (1963) [2021-12-18 03:56:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7852 states to 7852 states and 11007 transitions. [2021-12-18 03:56:22,414 INFO L78 Accepts]: Start accepts. Automaton has 7852 states and 11007 transitions. Word has length 156 [2021-12-18 03:56:22,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:56:22,416 INFO L470 AbstractCegarLoop]: Abstraction has 7852 states and 11007 transitions. [2021-12-18 03:56:22,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:56:22,416 INFO L276 IsEmpty]: Start isEmpty. Operand 7852 states and 11007 transitions. [2021-12-18 03:56:22,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-12-18 03:56:22,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:56:22,421 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:56:22,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 03:56:22,421 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:56:22,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:56:22,422 INFO L85 PathProgramCache]: Analyzing trace with hash -495016397, now seen corresponding path program 1 times [2021-12-18 03:56:22,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:56:22,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441211617] [2021-12-18 03:56:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:56:22,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:56:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:56:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:56:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:56:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 03:56:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 03:56:22,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 03:56:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:56:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 03:56:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 03:56:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:56:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 03:56:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 03:56:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 03:56:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:22,753 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-18 03:56:22,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:56:22,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441211617] [2021-12-18 03:56:22,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441211617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:56:22,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:56:22,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 03:56:22,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702936815] [2021-12-18 03:56:22,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:56:22,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 03:56:22,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:56:22,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 03:56:22,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 03:56:22,755 INFO L87 Difference]: Start difference. First operand 7852 states and 11007 transitions. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:56:24,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:26,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:28,813 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:30,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:56:34,516 INFO L93 Difference]: Finished difference Result 21907 states and 32678 transitions. [2021-12-18 03:56:34,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 03:56:34,517 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 158 [2021-12-18 03:56:34,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:56:34,571 INFO L225 Difference]: With dead ends: 21907 [2021-12-18 03:56:34,572 INFO L226 Difference]: Without dead ends: 14077 [2021-12-18 03:56:34,595 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2021-12-18 03:56:34,596 INFO L933 BasicCegarLoop]: 1145 mSDtfsCounter, 1730 mSDsluCounter, 6125 mSDsCounter, 0 mSdLazyCounter, 3327 mSolverCounterSat, 1186 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1894 SdHoareTripleChecker+Valid, 7270 SdHoareTripleChecker+Invalid, 4517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1186 IncrementalHoareTripleChecker+Valid, 3327 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-12-18 03:56:34,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1894 Valid, 7270 Invalid, 4517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1186 Valid, 3327 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2021-12-18 03:56:34,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14077 states. [2021-12-18 03:56:35,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14077 to 7884. [2021-12-18 03:56:35,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7884 states, 5674 states have (on average 1.3052520267888614) internal successors, (7406), 5816 states have internal predecessors, (7406), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2021-12-18 03:56:35,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7884 states to 7884 states and 11039 transitions. [2021-12-18 03:56:35,145 INFO L78 Accepts]: Start accepts. Automaton has 7884 states and 11039 transitions. Word has length 158 [2021-12-18 03:56:35,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:56:35,145 INFO L470 AbstractCegarLoop]: Abstraction has 7884 states and 11039 transitions. [2021-12-18 03:56:35,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (17), 6 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:56:35,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7884 states and 11039 transitions. [2021-12-18 03:56:35,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-18 03:56:35,150 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:56:35,151 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:56:35,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 03:56:35,151 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:56:35,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:56:35,152 INFO L85 PathProgramCache]: Analyzing trace with hash 632953324, now seen corresponding path program 1 times [2021-12-18 03:56:35,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:56:35,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203921687] [2021-12-18 03:56:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:56:35,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:56:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:56:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:56:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:56:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 03:56:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 03:56:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 03:56:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:56:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 03:56:35,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 03:56:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:56:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 03:56:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 03:56:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 03:56:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:35,430 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-18 03:56:35,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:56:35,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203921687] [2021-12-18 03:56:35,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203921687] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 03:56:35,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327125964] [2021-12-18 03:56:35,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:56:35,431 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:56:35,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:56:35,432 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) [2021-12-18 03:56:35,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 03:56:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:36,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 3585 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 03:56:36,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:56:36,353 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-18 03:56:36,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 03:56:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-18 03:56:36,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327125964] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 03:56:36,562 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 03:56:36,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 9 [2021-12-18 03:56:36,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931003699] [2021-12-18 03:56:36,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 03:56:36,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 03:56:36,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:56:36,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 03:56:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-18 03:56:36,564 INFO L87 Difference]: Start difference. First operand 7884 states and 11039 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:56:38,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:40,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:42,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:56:45,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:56:45,800 INFO L93 Difference]: Finished difference Result 20787 states and 30676 transitions. [2021-12-18 03:56:45,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-18 03:56:45,801 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 159 [2021-12-18 03:56:45,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:56:45,856 INFO L225 Difference]: With dead ends: 20787 [2021-12-18 03:56:45,856 INFO L226 Difference]: Without dead ends: 12925 [2021-12-18 03:56:45,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-12-18 03:56:45,882 INFO L933 BasicCegarLoop]: 963 mSDtfsCounter, 1882 mSDsluCounter, 3726 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 1517 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 4689 SdHoareTripleChecker+Invalid, 3927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1517 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-12-18 03:56:45,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2014 Valid, 4689 Invalid, 3927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1517 Valid, 2407 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2021-12-18 03:56:45,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12925 states. [2021-12-18 03:56:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12925 to 7924. [2021-12-18 03:56:46,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7924 states, 5714 states have (on average 1.304515225761288) internal successors, (7454), 5856 states have internal predecessors, (7454), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2021-12-18 03:56:46,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7924 states to 7924 states and 11087 transitions. [2021-12-18 03:56:46,414 INFO L78 Accepts]: Start accepts. Automaton has 7924 states and 11087 transitions. Word has length 159 [2021-12-18 03:56:46,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:56:46,414 INFO L470 AbstractCegarLoop]: Abstraction has 7924 states and 11087 transitions. [2021-12-18 03:56:46,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (25), 6 states have call predecessors, (25), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:56:46,415 INFO L276 IsEmpty]: Start isEmpty. Operand 7924 states and 11087 transitions. [2021-12-18 03:56:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-12-18 03:56:46,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:56:46,420 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:56:46,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-18 03:56:46,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-18 03:56:46,635 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:56:46,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:56:46,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1248930348, now seen corresponding path program 1 times [2021-12-18 03:56:46,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:56:46,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421534610] [2021-12-18 03:56:46,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:56:46,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:56:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:56:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:56:46,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:56:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:46,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 03:56:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 03:56:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 03:56:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:56:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 03:56:46,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 03:56:46,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:56:46,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 03:56:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 03:56:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:47,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 03:56:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-18 03:56:47,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:56:47,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421534610] [2021-12-18 03:56:47,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421534610] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 03:56:47,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42321505] [2021-12-18 03:56:47,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:56:47,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:56:47,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:56:47,016 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) [2021-12-18 03:56:47,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 03:56:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:47,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 3590 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 03:56:47,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:56:48,000 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-18 03:56:48,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:56:48,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42321505] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:56:48,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 03:56:48,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2021-12-18 03:56:48,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071905829] [2021-12-18 03:56:48,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:56:48,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 03:56:48,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:56:48,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 03:56:48,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-12-18 03:56:48,002 INFO L87 Difference]: Start difference. First operand 7924 states and 11087 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:56:48,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:56:48,394 INFO L93 Difference]: Finished difference Result 17090 states and 24068 transitions. [2021-12-18 03:56:48,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 03:56:48,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 161 [2021-12-18 03:56:48,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:56:48,422 INFO L225 Difference]: With dead ends: 17090 [2021-12-18 03:56:48,422 INFO L226 Difference]: Without dead ends: 9188 [2021-12-18 03:56:48,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-12-18 03:56:48,443 INFO L933 BasicCegarLoop]: 1323 mSDtfsCounter, 160 mSDsluCounter, 6432 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 7755 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 03:56:48,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 7755 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 03:56:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9188 states. [2021-12-18 03:56:48,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9188 to 7916. [2021-12-18 03:56:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7916 states, 5706 states have (on average 1.3049421661409044) internal successors, (7446), 5848 states have internal predecessors, (7446), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2021-12-18 03:56:48,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7916 states to 7916 states and 11079 transitions. [2021-12-18 03:56:48,871 INFO L78 Accepts]: Start accepts. Automaton has 7916 states and 11079 transitions. Word has length 161 [2021-12-18 03:56:48,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:56:48,872 INFO L470 AbstractCegarLoop]: Abstraction has 7916 states and 11079 transitions. [2021-12-18 03:56:48,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 6 states have internal predecessors, (104), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:56:48,872 INFO L276 IsEmpty]: Start isEmpty. Operand 7916 states and 11079 transitions. [2021-12-18 03:56:48,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-18 03:56:48,877 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:56:48,877 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:56:48,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 03:56:49,091 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,SelfDestructingSolverStorable12 [2021-12-18 03:56:49,092 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:56:49,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:56:49,092 INFO L85 PathProgramCache]: Analyzing trace with hash 516289676, now seen corresponding path program 2 times [2021-12-18 03:56:49,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:56:49,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822895100] [2021-12-18 03:56:49,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:56:49,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:56:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:56:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:56:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:56:49,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 03:56:49,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 03:56:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 03:56:49,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:56:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 03:56:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 03:56:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:56:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:56:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 03:56:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:56:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 03:56:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 03:56:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:56:49,395 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-18 03:56:49,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:56:49,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822895100] [2021-12-18 03:56:49,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822895100] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 03:56:49,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931365876] [2021-12-18 03:56:49,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 03:56:49,396 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:56:49,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:56:49,397 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) [2021-12-18 03:56:49,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 03:57:19,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-18 03:57:19,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 03:57:19,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 3601 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-18 03:57:19,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:57:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-18 03:57:20,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:57:20,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931365876] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:57:20,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 03:57:20,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2021-12-18 03:57:20,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388514307] [2021-12-18 03:57:20,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:57:20,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 03:57:20,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:57:20,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 03:57:20,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-12-18 03:57:20,117 INFO L87 Difference]: Start difference. First operand 7916 states and 11079 transitions. Second operand has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:57:22,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:22,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:57:22,709 INFO L93 Difference]: Finished difference Result 18440 states and 25761 transitions. [2021-12-18 03:57:22,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 03:57:22,710 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 165 [2021-12-18 03:57:22,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:57:22,739 INFO L225 Difference]: With dead ends: 18440 [2021-12-18 03:57:22,739 INFO L226 Difference]: Without dead ends: 10546 [2021-12-18 03:57:22,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2021-12-18 03:57:22,761 INFO L933 BasicCegarLoop]: 1386 mSDtfsCounter, 811 mSDsluCounter, 7927 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 65 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 9313 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 03:57:22,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 9313 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 109 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 03:57:22,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10546 states. [2021-12-18 03:57:23,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10546 to 7940. [2021-12-18 03:57:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7940 states, 5730 states have (on average 1.3022687609075043) internal successors, (7462), 5872 states have internal predecessors, (7462), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 547 states have return successors, (1971), 1743 states have call predecessors, (1971), 1659 states have call successors, (1971) [2021-12-18 03:57:23,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7940 states to 7940 states and 11095 transitions. [2021-12-18 03:57:23,202 INFO L78 Accepts]: Start accepts. Automaton has 7940 states and 11095 transitions. Word has length 165 [2021-12-18 03:57:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:57:23,202 INFO L470 AbstractCegarLoop]: Abstraction has 7940 states and 11095 transitions. [2021-12-18 03:57:23,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.75) internal successors, (102), 7 states have internal predecessors, (102), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2021-12-18 03:57:23,203 INFO L276 IsEmpty]: Start isEmpty. Operand 7940 states and 11095 transitions. [2021-12-18 03:57:23,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-18 03:57:23,207 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:57:23,207 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:57:23,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 03:57:23,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:57:23,424 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:57:23,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:57:23,424 INFO L85 PathProgramCache]: Analyzing trace with hash -763574002, now seen corresponding path program 1 times [2021-12-18 03:57:23,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:57:23,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113788581] [2021-12-18 03:57:23,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:57:23,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:57:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:57:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:57:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:57:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 03:57:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 03:57:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 03:57:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:57:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 03:57:23,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-18 03:57:23,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:57:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-18 03:57:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 03:57:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 03:57:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:23,907 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-18 03:57:23,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:57:23,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113788581] [2021-12-18 03:57:23,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113788581] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 03:57:23,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696398123] [2021-12-18 03:57:23,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:57:23,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:57:23,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:57:23,909 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) [2021-12-18 03:57:23,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 03:57:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:24,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 3596 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-18 03:57:24,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:57:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-12-18 03:57:25,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:57:25,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696398123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:57:25,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 03:57:25,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2021-12-18 03:57:25,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959925338] [2021-12-18 03:57:25,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:57:25,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 03:57:25,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:57:25,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 03:57:25,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-12-18 03:57:25,186 INFO L87 Difference]: Start difference. First operand 7940 states and 11095 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 03:57:27,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:29,241 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:31,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:33,260 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:34,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:57:34,935 INFO L93 Difference]: Finished difference Result 16247 states and 22804 transitions. [2021-12-18 03:57:34,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 03:57:34,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 165 [2021-12-18 03:57:34,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:57:34,956 INFO L225 Difference]: With dead ends: 16247 [2021-12-18 03:57:34,956 INFO L226 Difference]: Without dead ends: 8329 [2021-12-18 03:57:34,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-12-18 03:57:34,969 INFO L933 BasicCegarLoop]: 1549 mSDtfsCounter, 1251 mSDsluCounter, 5278 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1260 SdHoareTripleChecker+Valid, 6827 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-12-18 03:57:34,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1260 Valid, 6827 Invalid, 1660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1643 Invalid, 4 Unknown, 0 Unchecked, 9.3s Time] [2021-12-18 03:57:34,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8329 states. [2021-12-18 03:57:35,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8329 to 7960. [2021-12-18 03:57:35,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7960 states, 5746 states have (on average 1.3014270797076226) internal successors, (7478), 5888 states have internal predecessors, (7478), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 551 states have return successors, (1979), 1747 states have call predecessors, (1979), 1659 states have call successors, (1979) [2021-12-18 03:57:35,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7960 states to 7960 states and 11119 transitions. [2021-12-18 03:57:35,301 INFO L78 Accepts]: Start accepts. Automaton has 7960 states and 11119 transitions. Word has length 165 [2021-12-18 03:57:35,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:57:35,301 INFO L470 AbstractCegarLoop]: Abstraction has 7960 states and 11119 transitions. [2021-12-18 03:57:35,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 03:57:35,301 INFO L276 IsEmpty]: Start isEmpty. Operand 7960 states and 11119 transitions. [2021-12-18 03:57:35,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-18 03:57:35,305 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:57:35,305 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:57:35,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-18 03:57:35,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-18 03:57:35,543 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:57:35,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:57:35,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1710814093, now seen corresponding path program 1 times [2021-12-18 03:57:35,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:57:35,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020419130] [2021-12-18 03:57:35,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:57:35,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:57:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:57:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:57:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:57:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 03:57:35,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 03:57:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 03:57:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 03:57:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 03:57:35,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:57:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 03:57:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-18 03:57:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:35,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-18 03:57:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-18 03:57:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-18 03:57:35,883 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:57:35,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020419130] [2021-12-18 03:57:35,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020419130] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 03:57:35,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378828160] [2021-12-18 03:57:35,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:57:35,883 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:57:35,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:57:35,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 03:57:35,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 03:57:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:36,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 3622 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 03:57:36,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:57:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-12-18 03:57:36,992 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:57:36,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378828160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:57:36,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 03:57:36,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2021-12-18 03:57:36,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227882617] [2021-12-18 03:57:36,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:57:36,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:57:36,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:57:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:57:36,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 03:57:36,993 INFO L87 Difference]: Start difference. First operand 7960 states and 11119 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 03:57:37,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:57:37,358 INFO L93 Difference]: Finished difference Result 17026 states and 23940 transitions. [2021-12-18 03:57:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:57:37,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2021-12-18 03:57:37,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:57:37,386 INFO L225 Difference]: With dead ends: 17026 [2021-12-18 03:57:37,386 INFO L226 Difference]: Without dead ends: 9088 [2021-12-18 03:57:37,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 03:57:37,408 INFO L933 BasicCegarLoop]: 1224 mSDtfsCounter, 134 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 03:57:37,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 2366 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 03:57:37,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9088 states. [2021-12-18 03:57:37,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9088 to 8136. [2021-12-18 03:57:37,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8136 states, 5922 states have (on average 1.3059777102330294) internal successors, (7734), 6064 states have internal predecessors, (7734), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 551 states have return successors, (1979), 1747 states have call predecessors, (1979), 1659 states have call successors, (1979) [2021-12-18 03:57:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 11375 transitions. [2021-12-18 03:57:37,816 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 11375 transitions. Word has length 171 [2021-12-18 03:57:37,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:57:37,817 INFO L470 AbstractCegarLoop]: Abstraction has 8136 states and 11375 transitions. [2021-12-18 03:57:37,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 03:57:37,817 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 11375 transitions. [2021-12-18 03:57:37,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-12-18 03:57:37,821 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:57:37,821 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:57:37,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-18 03:57:38,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-18 03:57:38,025 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:57:38,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:57:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash 420132699, now seen corresponding path program 1 times [2021-12-18 03:57:38,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:57:38,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225654043] [2021-12-18 03:57:38,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:57:38,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:57:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:57:38,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:57:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:57:38,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-12-18 03:57:38,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-18 03:57:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-18 03:57:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-18 03:57:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 03:57:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-18 03:57:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 03:57:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-18 03:57:38,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:38,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 03:57:38,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-18 03:57:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-18 03:57:38,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:57:38,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225654043] [2021-12-18 03:57:38,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225654043] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 03:57:38,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443684607] [2021-12-18 03:57:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:57:38,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:57:38,357 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:57:38,358 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 03:57:38,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 03:57:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:39,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 3686 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-18 03:57:39,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:57:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-12-18 03:57:39,597 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:57:39,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443684607] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:57:39,597 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 03:57:39,597 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2021-12-18 03:57:39,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939461139] [2021-12-18 03:57:39,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:57:39,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 03:57:39,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:57:39,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 03:57:39,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-18 03:57:39,598 INFO L87 Difference]: Start difference. First operand 8136 states and 11375 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 03:57:41,637 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:43,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:45,664 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:46,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:57:46,933 INFO L93 Difference]: Finished difference Result 16280 states and 23076 transitions. [2021-12-18 03:57:46,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 03:57:46,933 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2021-12-18 03:57:46,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:57:46,966 INFO L225 Difference]: With dead ends: 16280 [2021-12-18 03:57:46,966 INFO L226 Difference]: Without dead ends: 8150 [2021-12-18 03:57:46,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-12-18 03:57:46,993 INFO L933 BasicCegarLoop]: 1463 mSDtfsCounter, 1107 mSDsluCounter, 3414 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 4877 SdHoareTripleChecker+Invalid, 1167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-12-18 03:57:46,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 4877 Invalid, 1167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1162 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2021-12-18 03:57:47,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8150 states. [2021-12-18 03:57:47,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8150 to 8144. [2021-12-18 03:57:47,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8144 states, 5926 states have (on average 1.3057711778602767) internal successors, (7738), 6072 states have internal predecessors, (7738), 1662 states have call successors, (1662), 440 states have call predecessors, (1662), 555 states have return successors, (2007), 1747 states have call predecessors, (2007), 1659 states have call successors, (2007) [2021-12-18 03:57:47,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8144 states to 8144 states and 11407 transitions. [2021-12-18 03:57:47,399 INFO L78 Accepts]: Start accepts. Automaton has 8144 states and 11407 transitions. Word has length 175 [2021-12-18 03:57:47,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:57:47,399 INFO L470 AbstractCegarLoop]: Abstraction has 8144 states and 11407 transitions. [2021-12-18 03:57:47,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 03:57:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand 8144 states and 11407 transitions. [2021-12-18 03:57:47,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-18 03:57:47,405 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:57:47,405 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:57:47,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 03:57:47,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-18 03:57:47,624 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:57:47,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:57:47,624 INFO L85 PathProgramCache]: Analyzing trace with hash -585151805, now seen corresponding path program 1 times [2021-12-18 03:57:47,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:57:47,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650020442] [2021-12-18 03:57:47,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:57:47,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:57:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:57:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:57:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:57:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 03:57:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 03:57:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 03:57:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 03:57:47,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 03:57:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 03:57:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 03:57:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:47,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 03:57:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 03:57:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 03:57:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 03:57:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:47,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:47,970 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-12-18 03:57:47,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:57:47,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650020442] [2021-12-18 03:57:47,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650020442] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 03:57:47,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980372391] [2021-12-18 03:57:47,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:57:47,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:57:47,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:57:47,972 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 03:57:47,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 03:57:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:48,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 3848 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 03:57:48,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:57:49,169 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-18 03:57:49,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:57:49,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980372391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:57:49,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 03:57:49,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2021-12-18 03:57:49,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667172484] [2021-12-18 03:57:49,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:57:49,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:57:49,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:57:49,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:57:49,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-18 03:57:49,171 INFO L87 Difference]: Start difference. First operand 8144 states and 11407 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 03:57:51,206 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:51,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:57:51,638 INFO L93 Difference]: Finished difference Result 9803 states and 13518 transitions. [2021-12-18 03:57:51,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 03:57:51,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 197 [2021-12-18 03:57:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:57:51,668 INFO L225 Difference]: With dead ends: 9803 [2021-12-18 03:57:51,668 INFO L226 Difference]: Without dead ends: 9781 [2021-12-18 03:57:51,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-18 03:57:51,674 INFO L933 BasicCegarLoop]: 1357 mSDtfsCounter, 1230 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-18 03:57:51,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1230 Valid, 1552 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-12-18 03:57:51,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2021-12-18 03:57:52,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 9768. [2021-12-18 03:57:52,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9768 states, 7314 states have (on average 1.2992890347279191) internal successors, (9503), 7464 states have internal predecessors, (9503), 1798 states have call successors, (1798), 524 states have call predecessors, (1798), 655 states have return successors, (2171), 1895 states have call predecessors, (2171), 1795 states have call successors, (2171) [2021-12-18 03:57:52,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9768 states to 9768 states and 13472 transitions. [2021-12-18 03:57:52,133 INFO L78 Accepts]: Start accepts. Automaton has 9768 states and 13472 transitions. Word has length 197 [2021-12-18 03:57:52,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:57:52,134 INFO L470 AbstractCegarLoop]: Abstraction has 9768 states and 13472 transitions. [2021-12-18 03:57:52,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 03:57:52,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9768 states and 13472 transitions. [2021-12-18 03:57:52,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-12-18 03:57:52,139 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:57:52,139 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:57:52,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-18 03:57:52,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:57:52,346 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:57:52,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:57:52,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1865015483, now seen corresponding path program 1 times [2021-12-18 03:57:52,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:57:52,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087262757] [2021-12-18 03:57:52,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:57:52,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:57:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:57:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-18 03:57:52,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2021-12-18 03:57:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-18 03:57:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-18 03:57:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 03:57:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-18 03:57:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-12-18 03:57:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-18 03:57:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-18 03:57:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-18 03:57:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:57:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-18 03:57:52,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-18 03:57:52,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-12-18 03:57:52,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:57:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:57:52,811 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-18 03:57:52,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:57:52,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087262757] [2021-12-18 03:57:52,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087262757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:57:52,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:57:52,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 03:57:52,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308352630] [2021-12-18 03:57:52,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:57:52,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 03:57:52,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:57:52,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 03:57:52,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 03:57:52,814 INFO L87 Difference]: Start difference. First operand 9768 states and 13472 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 03:57:54,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:56,863 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:57:58,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:58:00,887 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:58:04,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:58:04,409 INFO L93 Difference]: Finished difference Result 24072 states and 34623 transitions. [2021-12-18 03:58:04,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 03:58:04,410 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 197 [2021-12-18 03:58:04,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:58:04,466 INFO L225 Difference]: With dead ends: 24072 [2021-12-18 03:58:04,467 INFO L226 Difference]: Without dead ends: 14323 [2021-12-18 03:58:04,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-18 03:58:04,494 INFO L933 BasicCegarLoop]: 979 mSDtfsCounter, 1552 mSDsluCounter, 3395 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 1172 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 4374 SdHoareTripleChecker+Invalid, 3508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1172 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-12-18 03:58:04,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1682 Valid, 4374 Invalid, 3508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1172 Valid, 2332 Invalid, 4 Unknown, 0 Unchecked, 10.8s Time] [2021-12-18 03:58:04,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14323 states. [2021-12-18 03:58:05,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14323 to 9769. [2021-12-18 03:58:05,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9769 states, 7315 states have (on average 1.299248120300752) internal successors, (9504), 7465 states have internal predecessors, (9504), 1798 states have call successors, (1798), 524 states have call predecessors, (1798), 655 states have return successors, (2171), 1895 states have call predecessors, (2171), 1795 states have call successors, (2171) [2021-12-18 03:58:05,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9769 states to 9769 states and 13473 transitions. [2021-12-18 03:58:05,065 INFO L78 Accepts]: Start accepts. Automaton has 9769 states and 13473 transitions. Word has length 197 [2021-12-18 03:58:05,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:58:05,065 INFO L470 AbstractCegarLoop]: Abstraction has 9769 states and 13473 transitions. [2021-12-18 03:58:05,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-12-18 03:58:05,065 INFO L276 IsEmpty]: Start isEmpty. Operand 9769 states and 13473 transitions. [2021-12-18 03:58:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-12-18 03:58:05,072 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:58:05,072 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:58:05,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 03:58:05,073 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:58:05,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:58:05,073 INFO L85 PathProgramCache]: Analyzing trace with hash -122346491, now seen corresponding path program 1 times [2021-12-18 03:58:05,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:58:05,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584361321] [2021-12-18 03:58:05,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:58:05,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:58:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:58:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-18 03:58:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-18 03:58:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-18 03:58:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:58:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:58:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 03:58:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:58:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-18 03:58:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-18 03:58:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 03:58:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-18 03:58:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-18 03:58:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-18 03:58:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:58:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 03:58:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 03:58:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:58:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 03:58:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-18 03:58:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-18 03:58:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:58:05,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:05,500 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-18 03:58:05,500 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:58:05,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584361321] [2021-12-18 03:58:05,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584361321] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 03:58:05,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855999485] [2021-12-18 03:58:05,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:58:05,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:58:05,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:58:05,516 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 03:58:05,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-18 03:58:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:58:06,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 3858 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-18 03:58:06,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:58:06,978 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2021-12-18 03:58:06,978 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 03:58:07,320 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2021-12-18 03:58:07,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855999485] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 03:58:07,321 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-18 03:58:07,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2021-12-18 03:58:07,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374658826] [2021-12-18 03:58:07,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-18 03:58:07,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 03:58:07,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:58:07,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 03:58:07,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-12-18 03:58:07,323 INFO L87 Difference]: Start difference. First operand 9769 states and 13473 transitions. Second operand has 14 states, 14 states have (on average 11.5) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (44), 6 states have call predecessors, (44), 5 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-18 03:58:09,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:58:11,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:58:13,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:58:17,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:58:17,576 INFO L93 Difference]: Finished difference Result 24077 states and 34630 transitions. [2021-12-18 03:58:17,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 03:58:17,577 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (44), 6 states have call predecessors, (44), 5 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 198 [2021-12-18 03:58:17,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:58:17,631 INFO L225 Difference]: With dead ends: 24077 [2021-12-18 03:58:17,632 INFO L226 Difference]: Without dead ends: 14326 [2021-12-18 03:58:17,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2021-12-18 03:58:17,658 INFO L933 BasicCegarLoop]: 981 mSDtfsCounter, 1798 mSDsluCounter, 4612 mSDsCounter, 0 mSdLazyCounter, 2951 mSolverCounterSat, 1467 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 5593 SdHoareTripleChecker+Invalid, 4421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1467 IncrementalHoareTripleChecker+Valid, 2951 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-12-18 03:58:17,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1929 Valid, 5593 Invalid, 4421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1467 Valid, 2951 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2021-12-18 03:58:17,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14326 states. [2021-12-18 03:58:18,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14326 to 9772. [2021-12-18 03:58:18,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9772 states, 7318 states have (on average 1.2991254441104128) internal successors, (9507), 7468 states have internal predecessors, (9507), 1798 states have call successors, (1798), 524 states have call predecessors, (1798), 655 states have return successors, (2171), 1895 states have call predecessors, (2171), 1795 states have call successors, (2171) [2021-12-18 03:58:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9772 states to 9772 states and 13476 transitions. [2021-12-18 03:58:18,217 INFO L78 Accepts]: Start accepts. Automaton has 9772 states and 13476 transitions. Word has length 198 [2021-12-18 03:58:18,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:58:18,217 INFO L470 AbstractCegarLoop]: Abstraction has 9772 states and 13476 transitions. [2021-12-18 03:58:18,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.5) internal successors, (161), 10 states have internal predecessors, (161), 2 states have call successors, (44), 6 states have call predecessors, (44), 5 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-18 03:58:18,217 INFO L276 IsEmpty]: Start isEmpty. Operand 9772 states and 13476 transitions. [2021-12-18 03:58:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-18 03:58:18,222 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:58:18,223 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:58:18,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-18 03:58:18,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 03:58:18,424 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:58:18,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:58:18,424 INFO L85 PathProgramCache]: Analyzing trace with hash 315707205, now seen corresponding path program 2 times [2021-12-18 03:58:18,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:58:18,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128705887] [2021-12-18 03:58:18,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:58:18,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:58:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 03:58:19,566 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-18 03:58:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-18 03:58:20,789 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-18 03:58:20,789 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-18 03:58:20,790 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 03:58:20,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-18 03:58:20,793 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:58:20,796 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 03:58:20,834 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2021-12-18 03:58:21,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:58:21 BoogieIcfgContainer [2021-12-18 03:58:21,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 03:58:21,030 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 03:58:21,030 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 03:58:21,030 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 03:58:21,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:54:57" (3/4) ... [2021-12-18 03:58:21,033 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-18 03:58:21,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 03:58:21,033 INFO L158 Benchmark]: Toolchain (without parser) took 222338.37ms. Allocated memory was 119.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 90.8MB in the beginning and 656.1MB in the end (delta: -565.3MB). Peak memory consumption was 720.8MB. Max. memory is 16.1GB. [2021-12-18 03:58:21,034 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 03:58:21,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1420.48ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 90.5MB in the beginning and 90.9MB in the end (delta: -394.1kB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2021-12-18 03:58:21,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 173.03ms. Allocated memory is still 161.5MB. Free memory was 90.9MB in the beginning and 72.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-18 03:58:21,038 INFO L158 Benchmark]: Boogie Preprocessor took 131.22ms. Allocated memory is still 161.5MB. Free memory was 72.0MB in the beginning and 82.3MB in the end (delta: -10.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-18 03:58:21,039 INFO L158 Benchmark]: RCFGBuilder took 17185.66ms. Allocated memory was 161.5MB in the beginning and 559.9MB in the end (delta: 398.5MB). Free memory was 82.3MB in the beginning and 286.7MB in the end (delta: -204.4MB). Peak memory consumption was 334.5MB. Max. memory is 16.1GB. [2021-12-18 03:58:21,039 INFO L158 Benchmark]: TraceAbstraction took 203419.78ms. Allocated memory was 559.9MB in the beginning and 1.4GB in the end (delta: 843.1MB). Free memory was 286.7MB in the beginning and 656.1MB in the end (delta: -369.4MB). Peak memory consumption was 883.6MB. Max. memory is 16.1GB. [2021-12-18 03:58:21,039 INFO L158 Benchmark]: Witness Printer took 3.14ms. Allocated memory is still 1.4GB. Free memory is still 656.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 03:58:21,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 90.2MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1420.48ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 90.5MB in the beginning and 90.9MB in the end (delta: -394.1kB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 173.03ms. Allocated memory is still 161.5MB. Free memory was 90.9MB in the beginning and 72.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 131.22ms. Allocated memory is still 161.5MB. Free memory was 72.0MB in the beginning and 82.3MB in the end (delta: -10.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 17185.66ms. Allocated memory was 161.5MB in the beginning and 559.9MB in the end (delta: 398.5MB). Free memory was 82.3MB in the beginning and 286.7MB in the end (delta: -204.4MB). Peak memory consumption was 334.5MB. Max. memory is 16.1GB. * TraceAbstraction took 203419.78ms. Allocated memory was 559.9MB in the beginning and 1.4GB in the end (delta: 843.1MB). Free memory was 286.7MB in the beginning and 656.1MB in the end (delta: -369.4MB). Peak memory consumption was 883.6MB. Max. memory is 16.1GB. * Witness Printer took 3.14ms. Allocated memory is still 1.4GB. Free memory is still 656.1MB. 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) * 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: 6294]: 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 6616. Possible FailurePath: [L6317] struct usb_interface *p54u_driver_group1 ; [L6318] int LDV_IN_INTERRUPT = 1; [L6319] int ref_cnt ; [L6320] int ldv_state_variable_1 ; [L6321] int usb_counter ; [L6322] int ldv_state_variable_0 ; [L6425-L6614] static struct usb_device_id p54u_table[64U] = { {3U, 1041U, 80U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1118U, 194U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1286U, 2577U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1653U, 1328U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1721U, 288U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1799U, 60934U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1962U, 28U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17665U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17666U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 21761U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16896U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16912U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16928U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2474U, 4096U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3064U, 4103U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3294U, 6U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3504U, 26662U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4219U, 22002U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4682U, 16419U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5173U, 528U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5545U, 2U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5680U, 5U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6189U, 2411U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6421U, 8756U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 6421U, 8757U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14081U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14083U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14178U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 20545U, 8756U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 20545U, 8757U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1137U, 4656U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1293U, 28752U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1394U, 8192U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1394U, 8194U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1705U, 14U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1721U, 289U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 1799U, 60947U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2051U, 17168U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17697U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 17713U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 50433U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2106U, 62723U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2118U, 16960U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2325U, 8192U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2325U, 8194U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2991U, 280U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3064U, 4105U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3294U, 8U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3294U, 21U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3470U, 14178U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4682U, 16421U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 4704U, 60962U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5041U, 10U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5041U, 12U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5139U, 21504U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5173U, 1063U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5736U, 4176U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 5952U, 4096U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14084U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 8193U, 14085U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 21779U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33026U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 16700U, 33028U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L6615] struct usb_device_id const __mod_usb_device_table ; [L6616-L6619] static struct __anonstruct_p54u_fwlist_297 const p54u_fwlist[3U] = { {1280129078U, 1, "isl3886usb", {'I', 'S', 'L', '3', '8', '8', '6', ' ', '+', ' ', 'n', 'e', 't', '2', '2', '8', '0', '\000'}}, {1280129079U, 2, "isl3887usb", {'I', 'S', 'L', '3', '8', '8', '7', '\000'}}}; [L7035-L7036] static char const p54u_romboot_3887[5U] = { '~', '~', '~', '~', '\000'}; [L7061] static char const p54u_firmware_upload_3887[3U] = { '<', '\r', '\000'}; [L8068-L8074] static struct usb_driver p54u_driver = {"p54usb", & p54u_probe, & p54u_disconnect, 0, & p54u_suspend, & p54u_resume, & p54u_resume, & p54u_pre_reset, & p54u_post_reset, (struct usb_device_id const *)(& p54u_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, 0}, 0}, (unsigned char)0, (unsigned char)0, 1U, 1U}; [L8090] int ldv_retval_0 ; [L8091] int ldv_retval_4 ; [L8092] int ldv_retval_1 ; [L8095] int ldv_retval_3 ; [L8096] int ldv_retval_2 ; [L8436] int INTERF_STATE = 0; [L8437] int SERIAL_STATE = 0; [L8438] void *usb_intfdata = 0; [L8439] struct urb *usb_urb = 0; [L8440] struct usb_device *usb_dev = 0; [L8441] int dev_counter = 0; [L8442] int completeFnIntCounter = 0; [L8443] int completeFnBulkCounter = 0; [L8444] void (*completeFnInt)(struct urb * ) ; [L8445] void (*completeFnBulk)(struct urb * ) ; VAL [={0:0}, ={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, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8108] struct usb_device_id *ldvarg1 ; [L8109] void *tmp ; [L8110] pm_message_t ldvarg0 ; [L8111] int tmp___0 ; [L8112] int tmp___1 ; [L8113] int tmp___2 ; VAL [={0:0}, ={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, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldvarg0={47:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8115] CALL, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={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, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6259] void *p ; [L6260] void *tmp ; [L6261] int tmp___0 ; [L6263] tmp___0 = __VERIFIER_nondet_int() [L6264] COND TRUE tmp___0 != 0 [L6265] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=32, \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, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=32, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8115] RET, EXPR ldv_zalloc(32UL) VAL [={0:0}, ={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, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldv_zalloc(32UL)={0:0}, ldvarg0={47:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8115] tmp = ldv_zalloc(32UL) [L8116] ldvarg1 = (struct usb_device_id *)tmp [L8117] FCALL ldv_initialize() [L8118] FCALL memset((void *)(& ldvarg0), 0, 4UL) VAL [={0:0}, ={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, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=0, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, memset((void *)(& ldvarg0), 0, 4UL)={47:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8119] ldv_state_variable_1 = 0 [L8120] ref_cnt = 0 [L8121] ldv_state_variable_0 = 1 VAL [={0:0}, ={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, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8123] tmp___0 = __VERIFIER_nondet_int() [L8125] case 0: [L8191] case 1: VAL [={0:0}, ={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, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8192] COND TRUE ldv_state_variable_0 != 0 [L8193] tmp___2 = __VERIFIER_nondet_int() [L8195] case 0: [L8203] case 1: VAL [={0:0}, ={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, __mod_usb_device_table=0, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8204] COND TRUE ldv_state_variable_0 == 1 [L8205] CALL, EXPR p54u_driver_init() [L8077] int tmp ; [L8079] CALL, EXPR ldv_usb_register_driver_30(& p54u_driver, & __this_module, "p54usb") [L8408] ldv_func_ret_type ldv_func_res ; [L8409] int tmp ; [L8411] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8821] return __VERIFIER_nondet_int(); [L8411] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8411] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L8412] ldv_func_res = tmp [L8413] ldv_state_variable_1 = 1 [L8414] usb_counter = 0 [L8415] CALL ldv_usb_driver_1() [L8099] void *tmp ; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8101] CALL, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6259] void *p ; [L6260] void *tmp ; [L6261] int tmp___0 ; [L6263] tmp___0 = __VERIFIER_nondet_int() [L6264] COND TRUE tmp___0 != 0 [L6265] return ((void *)0); VAL [={0:0}, ={0:0}, \old(size)=1520, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1520, tmp___0=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8101] RET, EXPR ldv_zalloc(1520UL) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=1, ldv_zalloc(1520UL)={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8101] tmp = ldv_zalloc(1520UL) [L8102] p54u_driver_group1 = (struct usb_interface *)tmp VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8415] RET ldv_usb_driver_1() [L8416] return (ldv_func_res); VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={35:0}, ldv_func_arg1={35:0}, ldv_func_arg2={4294967322:4294967302}, ldv_func_arg2={4294967322:4294967302}, ldv_func_arg3={30:0}, ldv_func_arg3={30:0}, 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_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8079] RET, EXPR ldv_usb_register_driver_30(& p54u_driver, & __this_module, "p54usb") [L8079] tmp = ldv_usb_register_driver_30(& p54u_driver, & __this_module, "p54usb") [L8080] return (tmp); VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=1, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8205] RET, EXPR p54u_driver_init() [L8205] ldv_retval_4 = p54u_driver_init() [L8206] COND TRUE ldv_retval_4 == 0 [L8207] ldv_state_variable_0 = 3 VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8210] COND FALSE !(ldv_retval_4 != 0) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8123] tmp___0 = __VERIFIER_nondet_int() [L8125] case 0: VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=0, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8126] COND TRUE ldv_state_variable_1 != 0 [L8127] tmp___1 = __VERIFIER_nondet_int() [L8129] case 0: VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=0, tmp___1=0, tmp___2=1, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8130] COND TRUE ldv_state_variable_1 == 1 [L8131] CALL, EXPR p54u_probe(p54u_driver_group1, (struct usb_device_id const *)ldvarg1) [L7898] struct usb_device *udev ; [L7899] struct usb_device *tmp ; [L7900] struct ieee80211_hw *dev ; [L7901] struct p54u_priv *priv ; [L7902] int err ; [L7903] unsigned int i ; [L7904] unsigned int recognized_pipes ; [L7905] unsigned int tmp___0 ; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7907] CALL, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8237] struct usb_device *tmp ; [L8239] CALL, EXPR ldv_interface_to_usbdev() [L8549] void *result ; [L8550] void *tmp ; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8552] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6242] void *p ; [L6243] void *tmp ; [L6244] int tmp___0 ; [L6246] tmp___0 = __VERIFIER_nondet_int() [L6247] COND FALSE !(tmp___0 != 0) [L6250] tmp = malloc(size) [L6251] p = tmp VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p={-36893488147419103231:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-36893488147419103231:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6238] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p={-36893488147419103231:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-36893488147419103231:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6253] return (p); VAL [={0:0}, ={0:0}, \old(size)=1889, \result={-36893488147419103231:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p={-36893488147419103231:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-36893488147419103231:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8552] RET, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct usb_device))={-36893488147419103231:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8552] tmp = ldv_malloc(sizeof(struct usb_device)) [L8553] result = tmp VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={-36893488147419103231:0}, SERIAL_STATE=0, tmp={-36893488147419103231:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8554] COND TRUE (unsigned long )result != (unsigned long )((void *)0) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={-36893488147419103231:0}, SERIAL_STATE=0, tmp={-36893488147419103231:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8558] return (result); VAL [={0:0}, ={0:0}, \result={-36893488147419103231:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={-36893488147419103231:0}, SERIAL_STATE=0, tmp={-36893488147419103231:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8239] RET, EXPR ldv_interface_to_usbdev() [L8239] tmp = ldv_interface_to_usbdev() [L8240] return (tmp); VAL [={0:0}, ={0:0}, \result={-36893488147419103231:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-36893488147419103231:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7907] RET, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, id={0:0}, id={0:0}, INTERF_STATE=0, interface_to_usbdev(intf)={-36893488147419103231:0}, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L7907] tmp = interface_to_usbdev(intf) [L7908] udev = tmp [L7909] CALL, EXPR p54_init_common(4592UL) [L8747] CALL, EXPR ldv_malloc(sizeof(struct ieee80211_hw)) VAL [={0:0}, ={0:0}, \old(size)=122, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6242] void *p ; [L6243] void *tmp ; [L6244] int tmp___0 ; [L6246] tmp___0 = __VERIFIER_nondet_int() [L6247] COND FALSE !(tmp___0 != 0) [L6250] tmp = malloc(size) [L6251] p = tmp VAL [={0:0}, ={0:0}, \old(size)=122, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p={-55340232221128654847:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=122, tmp={-55340232221128654847:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6238] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6252] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=122, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p={-55340232221128654847:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=122, tmp={-55340232221128654847:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L6253] return (p); VAL [={0:0}, ={0:0}, \old(size)=122, \result={-55340232221128654847:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p={-55340232221128654847:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=122, tmp={-55340232221128654847:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8747] RET, EXPR ldv_malloc(sizeof(struct ieee80211_hw)) VAL [={0:0}, ={0:0}, \old(arg0)=4592, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, arg0=4592, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct ieee80211_hw))={-55340232221128654847:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}] [L8747] return ldv_malloc(sizeof(struct ieee80211_hw)); [L7909] RET, EXPR p54_init_common(4592UL) [L7909] dev = p54_init_common(4592UL) [L7910] COND FALSE !((unsigned long )dev == (unsigned long )((struct ieee80211_hw *)0)) [L7915] EXPR dev->priv [L7915] priv = (struct p54u_priv *)dev->priv [L7916] priv->hw_type = 0 [L7917] CALL SET_IEEE80211_DEV(dev, & intf->dev) [L6412] EXPR hw->wiphy [L6412] CALL set_wiphy_dev(hw->wiphy, dev) [L6405] wiphy->dev.parent = dev VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={0:44}, dev={0:44}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={0:0}, usb_urb={0:0}, wiphy={-55340232221128654847:-168}, wiphy={-55340232221128654847:-168}] [L6412] RET set_wiphy_dev(hw->wiphy, dev) [L7917] RET SET_IEEE80211_DEV(dev, & intf->dev) [L7918] CALL ldv_usb_set_intfdata_23(intf, (void *)dev) [L8386] CALL ldv_usb_set_intfdata(data) [L8455] usb_intfdata = data VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-55340232221128654847:0}, data={-55340232221128654847:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8386] RET ldv_usb_set_intfdata(data) [L7918] RET ldv_usb_set_intfdata_23(intf, (void *)dev) [L7919] priv->udev = udev [L7920] priv->intf = intf [L7921] CALL skb_queue_head_init(& priv->rx_queue) [L6348] struct lock_class_key __key ; VAL [={0:0}, ={0:0}, __key={49:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, list={-55340232221128654847:134}, list={-55340232221128654847:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6350] CALL spinlock_check(& list->lock) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, lock={-55340232221128654847:154}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6098] return (& lock->ldv_7686.rlock); VAL [={0:0}, ={0:0}, \result={-55340232221128654847:154}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, lock={-55340232221128654847:154}, lock={-55340232221128654847:154}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6350] RET spinlock_check(& list->lock) VAL [={0:0}, ={0:0}, __key={49:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, list={-55340232221128654847:134}, list={-55340232221128654847:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, spinlock_check(& list->lock)={-55340232221128654847:154}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6351] FCALL __raw_spin_lock_init(& list->lock.ldv_7686.rlock, "&(&list->lock)->rlock", & __key) VAL [={0:0}, ={0:0}, __key={49:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, list={-55340232221128654847:134}, list={-55340232221128654847:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6352] CALL __skb_queue_head_init(list) [L6337] struct sk_buff *tmp ; [L6339] tmp = (struct sk_buff *)list [L6340] list->next = tmp [L6341] list->prev = tmp [L6342] list->qlen = 0U VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, list={-55340232221128654847:134}, list={-55340232221128654847:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-55340232221128654847:134}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6352] RET __skb_queue_head_init(list) [L6353] return; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, list={-55340232221128654847:134}, list={-55340232221128654847:134}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7921] RET skb_queue_head_init(& priv->rx_queue) [L7922] CALL init_usb_anchor(& priv->submitted) [L6155] struct lock_class_key __key ; [L6156] struct lock_class_key __key___0 ; [L6158] CALL INIT_LIST_HEAD(& anchor->urb_list) [L6089] list->next = list [L6090] list->prev = list VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, list={-55340232221128654847:222}, list={-55340232221128654847:222}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6158] RET INIT_LIST_HEAD(& anchor->urb_list) [L6159] FCALL __init_waitqueue_head(& anchor->wait, "&anchor->wait", & __key) VAL [={0:0}, ={0:0}, __key={69:0}, __key___0={68:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, anchor={-55340232221128654847:222}, anchor={-55340232221128654847:222}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6160] CALL spinlock_check(& anchor->lock) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, lock={-55340232221128654847:322}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6098] return (& lock->ldv_7686.rlock); VAL [={0:0}, ={0:0}, \result={-55340232221128654847:322}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, lock={-55340232221128654847:322}, lock={-55340232221128654847:322}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6160] RET spinlock_check(& anchor->lock) VAL [={0:0}, ={0:0}, __key={69:0}, __key___0={68:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, anchor={-55340232221128654847:222}, anchor={-55340232221128654847:222}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, spinlock_check(& anchor->lock)={-55340232221128654847:322}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6161] FCALL __raw_spin_lock_init(& anchor->lock.ldv_7686.rlock, "&(&anchor->lock)->rlock", & __key___0) VAL [={0:0}, ={0:0}, __key={69:0}, __key___0={68:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, anchor={-55340232221128654847:222}, anchor={-55340232221128654847:222}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6162] return; [L6162] return; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, anchor={-55340232221128654847:222}, anchor={-55340232221128654847:222}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7922] RET init_usb_anchor(& priv->submitted) [L7923] CALL ldv_usb_get_dev_24(udev) [L8392] struct usb_device *tmp ; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={-36893488147419103231:0}, ldv_func_arg1={-36893488147419103231:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8394] CALL, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8563] int tmp ; VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-36893488147419103231:0}, data={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8565] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-36893488147419103231:0}, data={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8566] CALL, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6276] int tmp ; [L6278] tmp = __VERIFIER_nondet_int() [L6279] return (tmp); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8566] RET, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-36893488147419103231:0}, data={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_undef_int()=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8566] tmp = ldv_undef_int() [L8567] COND FALSE !(\read(tmp)) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-36893488147419103231:0}, data={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8577] return (usb_dev); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-36893488147419103231:0}, data={-36893488147419103231:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8394] RET, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={-36893488147419103231:0}, ldv_func_arg1={-36893488147419103231:0}, ldv_get_dev(ldv_func_arg1)={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8394] tmp = ldv_get_dev(ldv_func_arg1) [L8395] return (tmp); VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={-36893488147419103231:0}, ldv_func_arg1={-36893488147419103231:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7923] RET ldv_usb_get_dev_24(udev) [L7924] EXPR intf->altsetting [L7924] EXPR (intf->altsetting)->desc.bNumEndpoints [L7924] i = (unsigned int )(intf->altsetting)->desc.bNumEndpoints [L7925] recognized_pipes = 0U VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev_counter=0, i=0, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-55340232221128654847:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-36893488147419103231:0}, udev={-36893488147419103231:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7941] tmp___0 = i [L7942] i = i - 1U VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev_counter=0, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-55340232221128654847:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-36893488147419103231:0}, tmp___0=0, udev={-36893488147419103231:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7943] COND FALSE !(tmp___0 != 0U) [L7947] priv->common.open = & p54u_open [L7948] priv->common.stop = & p54u_stop VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev_counter=0, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-55340232221128654847:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-36893488147419103231:0}, tmp___0=0, udev={-36893488147419103231:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7949] COND TRUE recognized_pipes <= 8U [L7950] udev->reset_resume = 1U [L7951] CALL, EXPR p54u_device_reset(dev) [L7006] struct p54u_priv *priv ; [L7007] int ret ; [L7008] int lock ; [L7010] EXPR dev->priv [L7010] priv = (struct p54u_priv *)dev->priv [L7011] EXPR priv->intf [L7011] EXPR (priv->intf)->condition [L7011] lock = (unsigned int )(priv->intf)->condition != 1U [L7012] COND TRUE lock != 0 [L7013] EXPR priv->udev [L7013] EXPR priv->intf [L7013] CALL, EXPR usb_lock_device_for_reset(priv->udev, (struct usb_interface const *)priv->intf) [L8817] return __VERIFIER_nondet_int(); [L7013] RET, EXPR usb_lock_device_for_reset(priv->udev, (struct usb_interface const *)priv->intf) [L7013] ret = usb_lock_device_for_reset(priv->udev, (struct usb_interface const *)priv->intf) [L7014] COND TRUE ret < 0 [L7015] priv->udev [L7017] return (ret); VAL [={0:0}, ={0:0}, \result=-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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev={-55340232221128654847:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, lock=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={0:44}, ref_cnt=0, ret=-1, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7951] RET, EXPR p54u_device_reset(dev) [L7951] err = p54u_device_reset(dev) [L7952] priv->hw_type = 2 [L7953] EXPR dev->extra_tx_headroom [L7953] dev->extra_tx_headroom = dev->extra_tx_headroom + 8U [L7954] priv->common.tx_hdr_len = 8U [L7955] priv->common.tx = & p54u_tx_lm87 [L7956] priv->upload_fw = & p54u_upload_firmware_3887 VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev_counter=0, err=-1, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-55340232221128654847:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-36893488147419103231:0}, tmp___0=0, udev={-36893488147419103231:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7964] CALL, EXPR p54u_load_firmware(dev, intf) [L7866] struct usb_device *udev ; [L7867] struct usb_device *tmp ; [L7868] struct p54u_priv *priv ; [L7869] struct device *device ; [L7870] int err ; [L7871] int i ; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev={-55340232221128654847:0}, dev_counter=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7873] CALL, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8237] struct usb_device *tmp ; [L8239] CALL, EXPR ldv_interface_to_usbdev() [L8549] void *result ; [L8550] void *tmp ; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8552] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6242] void *p ; [L6243] void *tmp ; [L6244] int tmp___0 ; [L6246] tmp___0 = __VERIFIER_nondet_int() [L6247] COND FALSE !(tmp___0 != 0) [L6250] tmp = malloc(size) [L6251] p = tmp VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551615:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6252] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6238] COND FALSE !(!cond) VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, cond=1, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6252] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [={0:0}, ={0:0}, \old(size)=1889, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551615:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6253] return (p); VAL [={0:0}, ={0:0}, \old(size)=1889, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p={-18446744073709551615:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, size=1889, tmp={-18446744073709551615:0}, tmp___0=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8552] RET, EXPR ldv_malloc(sizeof(struct usb_device)) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct usb_device))={-18446744073709551615:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8552] tmp = ldv_malloc(sizeof(struct usb_device)) [L8553] result = tmp VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={-18446744073709551615:0}, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8554] COND TRUE (unsigned long )result != (unsigned long )((void *)0) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={-18446744073709551615:0}, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8558] return (result); VAL [={0:0}, ={0:0}, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, result={-18446744073709551615:0}, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8239] RET, EXPR ldv_interface_to_usbdev() [L8239] tmp = ldv_interface_to_usbdev() [L8240] return (tmp); VAL [={0:0}, ={0:0}, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7873] RET, EXPR interface_to_usbdev(intf) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev={-55340232221128654847:0}, dev_counter=0, INTERF_STATE=0, interface_to_usbdev(intf)={-18446744073709551615:0}, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7873] tmp = interface_to_usbdev(intf) [L7874] udev = tmp [L7875] EXPR dev->priv [L7875] priv = (struct p54u_priv *)dev->priv [L7876] device = & udev->dev [L7877] CALL init_completion(& priv->fw_wait_load) [L6106] struct lock_class_key __key ; [L6108] x->done = 0U VAL [={0:0}, ={0:0}, __key={45:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}, x={32:345}, x={32:345}] [L6109] FCALL __init_waitqueue_head(& x->wait, "&x->wait", & __key) VAL [={0:0}, ={0:0}, __key={45:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}, x={32:345}, x={32:345}] [L6110] return; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}, x={32:345}, x={32:345}] [L7877] RET init_completion(& priv->fw_wait_load) [L7878] CALL, EXPR p54_find_type(priv) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={32:-3812}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7753] int i ; [L7755] i = 0 VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={32:-3812}, priv={32:-3812}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7764] COND TRUE i <= 2 VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={32:-3812}, priv={32:-3812}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7758] EXPR p54u_fwlist[i].type [L7758] EXPR priv->hw_type VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_fwlist[i].type=1, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={32:-3812}, priv={32:-3812}, priv->hw_type=-4294967295, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7758] COND TRUE (unsigned int )p54u_fwlist[i].type == (unsigned int )priv->hw_type [L7769] COND FALSE !(i == 3) [L7773] return (i); VAL [={0:0}, ={0:0}, \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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, i=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={32:-3812}, priv={32:-3812}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7878] RET, EXPR p54_find_type(priv) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev={-55340232221128654847:0}, dev_counter=0, device={-18446744073709551615:131}, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54_find_type(priv)=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={32:-3812}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, udev={-18446744073709551615:0}, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7878] i = p54_find_type(priv) [L7879] COND FALSE !(i < 0) [L7883] priv->udev [L7884] p54u_fwlist[i].fw [L7885] CALL ldv_usb_get_dev_22(udev) [L8377] struct usb_device *tmp ; VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8379] CALL, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8563] int tmp ; VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8565] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8566] CALL, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6276] int tmp ; [L6278] tmp = __VERIFIER_nondet_int() [L6279] return (tmp); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result=70, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=70, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8566] RET, EXPR ldv_undef_int() VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=0, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, ldv_undef_int()=70, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={0:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8566] tmp = ldv_undef_int() [L8567] COND TRUE \read(tmp) [L8568] dev_counter = dev_counter + 1 [L8569] usb_dev = data VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=1, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=70, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8577] return (usb_dev); VAL [={0:0}, ={0:0}, \old(dev_counter)=0, \old(usb_dev)=0, \old(usb_dev)=0, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, data={-18446744073709551615:0}, data={-18446744073709551615:0}, dev_counter=1, INTERF_STATE=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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp=70, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8379] RET, EXPR ldv_get_dev(ldv_func_arg1) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, ldv_get_dev(ldv_func_arg1)={-18446744073709551615:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8379] tmp = ldv_get_dev(ldv_func_arg1) [L8380] return (tmp); VAL [={0:0}, ={0:0}, \result={-18446744073709551615:0}, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_usb_device_table=0, __mod_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={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, ldv_func_arg1={-18446744073709551615:0}, ldv_func_arg1={-18446744073709551615:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7885] RET ldv_usb_get_dev_22(udev) [L7886] EXPR p54u_fwlist[i].fw [L7886-L7887] CALL, EXPR request_firmware_nowait(& __this_module, 1, p54u_fwlist[i].fw, device, 208U, (void *)priv, & p54u_load_firmware_cb) [L8773] return __VERIFIER_nondet_int(); [L7886-L7887] RET, EXPR request_firmware_nowait(& __this_module, 1, p54u_fwlist[i].fw, device, 208U, (void *)priv, & p54u_load_firmware_cb) [L7886-L7887] err = request_firmware_nowait(& __this_module, 1, p54u_fwlist[i].fw, device, 208U, (void *)priv, & p54u_load_firmware_cb) [L7888] COND TRUE err != 0 [L7889] priv->udev [L7890] p54u_fwlist[i].fw [L7893] return (err); VAL [={0:0}, ={0:0}, \result=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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev={-55340232221128654847:0}, dev_counter=1, device={-18446744073709551615:131}, err=1, i=0, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={32:-3812}, ref_cnt=0, SERIAL_STATE=0, tmp={-18446744073709551615:0}, udev={-18446744073709551615:0}, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L7964] RET, EXPR p54u_load_firmware(dev, intf) [L7964] err = p54u_load_firmware(dev, intf) [L7965] return (err); VAL [={0:0}, ={0:0}, \result=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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev={-55340232221128654847:0}, dev_counter=1, err=1, i=4294967295, id={0:0}, id={0:0}, INTERF_STATE=0, intf={0:0}, intf={0:0}, 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_state_variable_0=3, ldv_state_variable_1=1, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, priv={-55340232221128654847:-3758}, recognized_pipes=0, ref_cnt=0, SERIAL_STATE=0, tmp={-36893488147419103231:0}, tmp___0=0, udev={-36893488147419103231:0}, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8131] RET, EXPR p54u_probe(p54u_driver_group1, (struct usb_device_id const *)ldvarg1) [L8131] ldv_retval_3 = p54u_probe(p54u_driver_group1, (struct usb_device_id const *)ldvarg1) [L8132] COND FALSE !(ldv_retval_3 == 0) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=0, tmp___1=0, tmp___2=1, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8123] tmp___0 = __VERIFIER_nondet_int() [L8125] case 0: [L8191] case 1: VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___1=0, tmp___2=1, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8192] COND TRUE ldv_state_variable_0 != 0 [L8193] tmp___2 = __VERIFIER_nondet_int() [L8195] case 0: VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___1=0, tmp___2=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8196] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L8197] CALL p54u_driver_exit() [L8086] CALL ldv_usb_deregister_31(& p54u_driver) [L8422] FCALL usb_deregister(arg) [L8423] ldv_state_variable_1 = 0 VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, arg={35:0}, arg={35:0}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=3, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8086] RET ldv_usb_deregister_31(& p54u_driver) [L8197] RET p54u_driver_exit() [L8198] ldv_state_variable_0 = 2 VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, ldvarg0={47:0}, ldvarg1={0:0}, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, tmp={0:0}, tmp___0=1, tmp___1=0, tmp___2=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8231] CALL ldv_check_final_state() [L8655] COND TRUE (unsigned long )usb_urb == (unsigned long )((struct urb *)0) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8659] COND FALSE !((unsigned long )usb_dev == (unsigned long )((struct usb_device *)0)) VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L8661] CALL ldv_error() VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] [L6294] reach_error() VAL [={0:0}, ={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, __mod_usb_device_table=0, __this_module={4294967322:4294967302}, completeFnBulkCounter=0, completeFnIntCounter=0, dev_counter=1, INTERF_STATE=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=1, ldv_retval_4=0, ldv_state_variable_0=2, ldv_state_variable_1=0, p54u_driver={35:0}, p54u_driver_group1={0:0}, p54u_firmware_upload_3887={34:0}, p54u_fwlist={32:0}, p54u_romboot_3887={33:0}, p54u_table={31:0}, ref_cnt=0, SERIAL_STATE=0, usb_counter=0, usb_dev={-18446744073709551615:0}, usb_intfdata={-55340232221128654847:0}, usb_urb={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 56 procedures, 838 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 203.1s, OverallIterations: 21, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 145.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 50 mSolverCounterUnknown, 32049 SdHoareTripleChecker+Valid, 135.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30204 mSDsluCounter, 85316 SdHoareTripleChecker+Invalid, 130.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61652 mSDsCounter, 15484 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27110 IncrementalHoareTripleChecker+Invalid, 42644 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15484 mSolverCounterUnsat, 23664 mSDtfsCounter, 27110 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2437 GetRequests, 2227 SyntacticMatches, 1 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9772occurred in iteration=20, InterpolantAutomatonStates: 174, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 42129 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 35.0s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 4049 NumberOfCodeBlocks, 4049 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 4175 ConstructedInterpolants, 0 QuantifiedInterpolants, 7789 SizeOfPredicates, 17 NumberOfNonLiveVariables, 29386 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 30 InterpolantComputations, 18 PerfectInterpolantSequences, 1164/1221 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 [2021-12-18 03:58:21,080 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.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 a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 03:58:22,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 03:58:22,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 03:58:22,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 03:58:22,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 03:58:22,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 03:58:22,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 03:58:22,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 03:58:22,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 03:58:22,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 03:58:22,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 03:58:22,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 03:58:22,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 03:58:22,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 03:58:22,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 03:58:22,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 03:58:22,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 03:58:22,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 03:58:22,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 03:58:22,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 03:58:22,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 03:58:22,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 03:58:22,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 03:58:22,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 03:58:22,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 03:58:22,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 03:58:22,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 03:58:22,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 03:58:22,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 03:58:22,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 03:58:22,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 03:58:22,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 03:58:22,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 03:58:22,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 03:58:22,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 03:58:22,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 03:58:22,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 03:58:22,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 03:58:22,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 03:58:22,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 03:58:22,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 03:58:22,887 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-18 03:58:22,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 03:58:22,916 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 03:58:22,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 03:58:22,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 03:58:22,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 03:58:22,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 03:58:22,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 03:58:22,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 03:58:22,919 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 03:58:22,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 03:58:22,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 03:58:22,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 03:58:22,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 03:58:22,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 03:58:22,920 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-18 03:58:22,921 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-18 03:58:22,921 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-18 03:58:22,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 03:58:22,921 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 03:58:22,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 03:58:22,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 03:58:22,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 03:58:22,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 03:58:22,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:58:22,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 03:58:22,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 03:58:22,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 03:58:22,928 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-18 03:58:22,929 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-18 03:58:22,929 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 03:58:22,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 03:58:22,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 03:58:22,929 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 03:58:22,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-18 03:58:22,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a78ad5bb06da9a7367e7c9e45cee20fe00113336b7bc544675fdd46fc445ae5c [2021-12-18 03:58:23,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 03:58:23,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 03:58:23,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 03:58:23,226 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 03:58:23,226 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 03:58:23,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2021-12-18 03:58:23,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d8abf94a/32bc8b39544f489abe924aec5d13342a/FLAG6aa9e7c49 [2021-12-18 03:58:23,954 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 03:58:23,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2021-12-18 03:58:24,009 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d8abf94a/32bc8b39544f489abe924aec5d13342a/FLAG6aa9e7c49 [2021-12-18 03:58:24,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d8abf94a/32bc8b39544f489abe924aec5d13342a [2021-12-18 03:58:24,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 03:58:24,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 03:58:24,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 03:58:24,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 03:58:24,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 03:58:24,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:58:24" (1/1) ... [2021-12-18 03:58:24,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4aa060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:24, skipping insertion in model container [2021-12-18 03:58:24,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:58:24" (1/1) ... [2021-12-18 03:58:24,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 03:58:24,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 03:58:25,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2021-12-18 03:58:25,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:58:25,710 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-18 03:58:25,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 03:58:25,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2021-12-18 03:58:25,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:58:25,986 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 03:58:26,122 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[181063,181076] [2021-12-18 03:58:26,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:58:26,270 INFO L208 MainTranslator]: Completed translation [2021-12-18 03:58:26,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26 WrapperNode [2021-12-18 03:58:26,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 03:58:26,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 03:58:26,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 03:58:26,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 03:58:26,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,419 INFO L137 Inliner]: procedures = 198, calls = 1615, calls flagged for inlining = 84, calls inlined = 65, statements flattened = 2837 [2021-12-18 03:58:26,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 03:58:26,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 03:58:26,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 03:58:26,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 03:58:26,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 03:58:26,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 03:58:26,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 03:58:26,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 03:58:26,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (1/1) ... [2021-12-18 03:58:26,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:58:26,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:58:26,596 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) [2021-12-18 03:58:26,610 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 [2021-12-18 03:58:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-18 03:58:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-18 03:58:26,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 03:58:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-18 03:58:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-18 03:58:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2021-12-18 03:58:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 03:58:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-18 03:58:26,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-18 03:58:26,627 INFO L130 BoogieDeclarations]: Found specification of procedure device_unlock [2021-12-18 03:58:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unlock [2021-12-18 03:58:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_skb [2021-12-18 03:58:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_skb [2021-12-18 03:58:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 03:58:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 03:58:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 03:58:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 03:58:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 03:58:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 03:58:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-12-18 03:58:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-12-18 03:58:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-12-18 03:58:26,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-12-18 03:58:26,628 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 03:58:26,629 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 03:58:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 03:58:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-18 03:58:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 03:58:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2021-12-18 03:58:26,629 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2021-12-18 03:58:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2021-12-18 03:58:26,629 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2021-12-18 03:58:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2021-12-18 03:58:26,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2021-12-18 03:58:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-18 03:58:26,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-18 03:58:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 03:58:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-18 03:58:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 03:58:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-18 03:58:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-18 03:58:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-18 03:58:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2021-12-18 03:58:26,630 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2021-12-18 03:58:26,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-18 03:58:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 03:58:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 03:58:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2021-12-18 03:58:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2021-12-18 03:58:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2021-12-18 03:58:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2021-12-18 03:58:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 03:58:26,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 03:58:26,631 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-18 03:58:26,632 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-18 03:58:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 03:58:26,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 03:58:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2021-12-18 03:58:26,632 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2021-12-18 03:58:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_5 [2021-12-18 03:58:26,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_5 [2021-12-18 03:58:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2021-12-18 03:58:26,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2021-12-18 03:58:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-12-18 03:58:26,632 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-12-18 03:58:26,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 03:58:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 03:58:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-18 03:58:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-18 03:58:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-12-18 03:58:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-12-18 03:58:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 03:58:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 03:58:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-18 03:58:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-18 03:58:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-18 03:58:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-18 03:58:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-18 03:58:26,633 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2021-12-18 03:58:26,633 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2021-12-18 03:58:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-18 03:58:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-18 03:58:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-18 03:58:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 03:58:26,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 03:58:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_rx_cb [2021-12-18 03:58:26,634 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_rx_cb [2021-12-18 03:58:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 03:58:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2021-12-18 03:58:26,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2021-12-18 03:58:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 03:58:26,634 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2021-12-18 03:58:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2021-12-18 03:58:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2021-12-18 03:58:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2021-12-18 03:58:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 03:58:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 03:58:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 03:58:26,635 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 03:58:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 03:58:26,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-18 03:58:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2021-12-18 03:58:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2021-12-18 03:58:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-18 03:58:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 03:58:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 03:58:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-18 03:58:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2021-12-18 03:58:26,636 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2021-12-18 03:58:26,636 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-18 03:58:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-18 03:58:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2021-12-18 03:58:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2021-12-18 03:58:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2021-12-18 03:58:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2021-12-18 03:58:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-18 03:58:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-18 03:58:26,637 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-18 03:58:26,637 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-18 03:58:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2021-12-18 03:58:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2021-12-18 03:58:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-18 03:58:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-18 03:58:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-18 03:58:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-18 03:58:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-18 03:58:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-18 03:58:26,638 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-18 03:58:26,638 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-12-18 03:58:26,639 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-12-18 03:58:26,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 03:58:26,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 03:58:27,037 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 03:58:27,039 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 03:58:28,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 03:58:32,977 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-12-18 03:59:05,446 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 03:59:05,458 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 03:59:05,458 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-18 03:59:05,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:59:05 BoogieIcfgContainer [2021-12-18 03:59:05,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 03:59:05,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 03:59:05,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 03:59:05,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 03:59:05,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:58:24" (1/3) ... [2021-12-18 03:59:05,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5052bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:59:05, skipping insertion in model container [2021-12-18 03:59:05,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:58:26" (2/3) ... [2021-12-18 03:59:05,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5052bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:59:05, skipping insertion in model container [2021-12-18 03:59:05,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:59:05" (3/3) ... [2021-12-18 03:59:05,466 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2021-12-18 03:59:05,470 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 03:59:05,470 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 03:59:05,504 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 03:59:05,508 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 [2021-12-18 03:59:05,508 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 03:59:05,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 836 states, 591 states have (on average 1.3468697123519457) internal successors, (796), 617 states have internal predecessors, (796), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) [2021-12-18 03:59:05,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-18 03:59:05,541 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:05,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:59:05,542 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:05,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash -753531349, now seen corresponding path program 1 times [2021-12-18 03:59:05,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:05,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884117952] [2021-12-18 03:59:05,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:05,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:05,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:05,573 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) [2021-12-18 03:59:05,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-18 03:59:06,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:06,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 03:59:06,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:59:07,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:07,049 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:07,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884117952] [2021-12-18 03:59:07,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884117952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:07,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:07,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:59:07,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541785792] [2021-12-18 03:59:07,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:07,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:59:07,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:07,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:59:07,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:59:07,075 INFO L87 Difference]: Start difference. First operand has 836 states, 591 states have (on average 1.3468697123519457) internal successors, (796), 617 states have internal predecessors, (796), 190 states have call successors, (190), 55 states have call predecessors, (190), 53 states have return successors, (185), 182 states have call predecessors, (185), 185 states have call successors, (185) Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-18 03:59:07,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:07,443 INFO L93 Difference]: Finished difference Result 1670 states and 2383 transitions. [2021-12-18 03:59:07,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 03:59:07,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-12-18 03:59:07,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:07,465 INFO L225 Difference]: With dead ends: 1670 [2021-12-18 03:59:07,465 INFO L226 Difference]: Without dead ends: 824 [2021-12-18 03:59:07,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:59:07,474 INFO L933 BasicCegarLoop]: 1160 mSDtfsCounter, 2 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3478 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:07,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 3478 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 03:59:07,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2021-12-18 03:59:07,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2021-12-18 03:59:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 586 states have (on average 1.3344709897610922) internal successors, (782), 605 states have internal predecessors, (782), 185 states have call successors, (185), 53 states have call predecessors, (185), 52 states have return successors, (180), 177 states have call predecessors, (180), 180 states have call successors, (180) [2021-12-18 03:59:07,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1147 transitions. [2021-12-18 03:59:07,565 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1147 transitions. Word has length 28 [2021-12-18 03:59:07,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:07,566 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1147 transitions. [2021-12-18 03:59:07,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-18 03:59:07,567 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1147 transitions. [2021-12-18 03:59:07,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-18 03:59:07,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:07,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:59:07,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:07,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:07,796 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:07,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:07,796 INFO L85 PathProgramCache]: Analyzing trace with hash 65775979, now seen corresponding path program 1 times [2021-12-18 03:59:07,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:07,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271511208] [2021-12-18 03:59:07,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:07,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:07,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:07,800 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) [2021-12-18 03:59:07,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-18 03:59:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:08,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 2202 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-18 03:59:08,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:59:09,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 03:59:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:59:10,205 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:10,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271511208] [2021-12-18 03:59:10,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271511208] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 03:59:10,205 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 03:59:10,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-12-18 03:59:10,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380697310] [2021-12-18 03:59:10,206 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 03:59:10,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 03:59:10,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:10,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 03:59:10,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 03:59:10,207 INFO L87 Difference]: Start difference. First operand 824 states and 1147 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:10,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:10,972 INFO L93 Difference]: Finished difference Result 1644 states and 2291 transitions. [2021-12-18 03:59:10,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 03:59:10,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2021-12-18 03:59:10,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:10,983 INFO L225 Difference]: With dead ends: 1644 [2021-12-18 03:59:10,983 INFO L226 Difference]: Without dead ends: 827 [2021-12-18 03:59:10,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-12-18 03:59:10,990 INFO L933 BasicCegarLoop]: 1144 mSDtfsCounter, 11 mSDsluCounter, 3430 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4574 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:10,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 4574 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-18 03:59:10,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2021-12-18 03:59:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 827. [2021-12-18 03:59:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 589 states have (on average 1.33276740237691) internal successors, (785), 608 states have internal predecessors, (785), 185 states have call successors, (185), 53 states have call predecessors, (185), 52 states have return successors, (180), 177 states have call predecessors, (180), 180 states have call successors, (180) [2021-12-18 03:59:11,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1150 transitions. [2021-12-18 03:59:11,035 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1150 transitions. Word has length 29 [2021-12-18 03:59:11,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:11,035 INFO L470 AbstractCegarLoop]: Abstraction has 827 states and 1150 transitions. [2021-12-18 03:59:11,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:11,036 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1150 transitions. [2021-12-18 03:59:11,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-18 03:59:11,039 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:11,039 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:59:11,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:11,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:11,255 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:11,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:11,256 INFO L85 PathProgramCache]: Analyzing trace with hash 755291691, now seen corresponding path program 2 times [2021-12-18 03:59:11,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:11,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956671928] [2021-12-18 03:59:11,258 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-18 03:59:11,259 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:11,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:11,260 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) [2021-12-18 03:59:11,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-18 03:59:12,157 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-12-18 03:59:12,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-18 03:59:12,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 03:59:12,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-12-18 03:59:12,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:12,519 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:12,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956671928] [2021-12-18 03:59:12,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956671928] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:12,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:12,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:59:12,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003321777] [2021-12-18 03:59:12,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:12,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:59:12,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:12,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:59:12,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:12,523 INFO L87 Difference]: Start difference. First operand 827 states and 1150 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-18 03:59:14,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:59:15,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:15,127 INFO L93 Difference]: Finished difference Result 2428 states and 3388 transitions. [2021-12-18 03:59:15,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:59:15,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2021-12-18 03:59:15,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:15,135 INFO L225 Difference]: With dead ends: 2428 [2021-12-18 03:59:15,136 INFO L226 Difference]: Without dead ends: 1616 [2021-12-18 03:59:15,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:15,143 INFO L933 BasicCegarLoop]: 1332 mSDtfsCounter, 1104 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1104 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:15,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1104 Valid, 2459 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2021-12-18 03:59:15,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2021-12-18 03:59:15,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1616. [2021-12-18 03:59:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1150 states have (on average 1.3330434782608696) internal successors, (1533), 1184 states have internal predecessors, (1533), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2021-12-18 03:59:15,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2252 transitions. [2021-12-18 03:59:15,199 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2252 transitions. Word has length 32 [2021-12-18 03:59:15,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:15,199 INFO L470 AbstractCegarLoop]: Abstraction has 1616 states and 2252 transitions. [2021-12-18 03:59:15,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-18 03:59:15,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2252 transitions. [2021-12-18 03:59:15,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-18 03:59:15,203 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:15,203 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-12-18 03:59:15,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:15,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:15,427 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:15,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:15,428 INFO L85 PathProgramCache]: Analyzing trace with hash -398706385, now seen corresponding path program 1 times [2021-12-18 03:59:15,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:15,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692914441] [2021-12-18 03:59:15,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:15,431 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:15,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:15,433 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) [2021-12-18 03:59:15,434 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-18 03:59:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:16,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 03:59:16,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-18 03:59:16,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:16,728 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:16,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692914441] [2021-12-18 03:59:16,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692914441] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:16,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:16,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:59:16,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826351192] [2021-12-18 03:59:16,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:16,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:59:16,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:16,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:59:16,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:16,732 INFO L87 Difference]: Start difference. First operand 1616 states and 2252 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:17,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:17,014 INFO L93 Difference]: Finished difference Result 1642 states and 2284 transitions. [2021-12-18 03:59:17,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:59:17,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2021-12-18 03:59:17,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:17,022 INFO L225 Difference]: With dead ends: 1642 [2021-12-18 03:59:17,022 INFO L226 Difference]: Without dead ends: 1629 [2021-12-18 03:59:17,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:17,025 INFO L933 BasicCegarLoop]: 1161 mSDtfsCounter, 1141 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:17,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 1177 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 03:59:17,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2021-12-18 03:59:17,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1616. [2021-12-18 03:59:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1616 states, 1150 states have (on average 1.3321739130434782) internal successors, (1532), 1184 states have internal predecessors, (1532), 362 states have call successors, (362), 104 states have call predecessors, (362), 103 states have return successors, (357), 351 states have call predecessors, (357), 357 states have call successors, (357) [2021-12-18 03:59:17,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1616 states to 1616 states and 2251 transitions. [2021-12-18 03:59:17,086 INFO L78 Accepts]: Start accepts. Automaton has 1616 states and 2251 transitions. Word has length 42 [2021-12-18 03:59:17,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:17,087 INFO L470 AbstractCegarLoop]: Abstraction has 1616 states and 2251 transitions. [2021-12-18 03:59:17,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:17,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states and 2251 transitions. [2021-12-18 03:59:17,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-18 03:59:17,089 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:17,090 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-12-18 03:59:17,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:17,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:17,303 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:17,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:17,304 INFO L85 PathProgramCache]: Analyzing trace with hash -341448083, now seen corresponding path program 1 times [2021-12-18 03:59:17,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:17,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918805263] [2021-12-18 03:59:17,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:17,306 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:17,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:17,309 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) [2021-12-18 03:59:17,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-18 03:59:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:18,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 2279 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 03:59:18,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:20,804 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-18 03:59:20,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:20,805 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:20,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918805263] [2021-12-18 03:59:20,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918805263] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:20,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:20,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 03:59:20,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905854546] [2021-12-18 03:59:20,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:20,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:59:20,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:20,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:59:20,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:20,806 INFO L87 Difference]: Start difference. First operand 1616 states and 2251 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:21,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:21,218 INFO L93 Difference]: Finished difference Result 4803 states and 6768 transitions. [2021-12-18 03:59:21,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:59:21,219 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2021-12-18 03:59:21,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:21,235 INFO L225 Difference]: With dead ends: 4803 [2021-12-18 03:59:21,236 INFO L226 Difference]: Without dead ends: 3209 [2021-12-18 03:59:21,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:21,244 INFO L933 BasicCegarLoop]: 1470 mSDtfsCounter, 1118 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 2601 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:21,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 2601 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-18 03:59:21,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3209 states. [2021-12-18 03:59:21,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3209 to 3199. [2021-12-18 03:59:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3199 states, 2278 states have (on average 1.3318700614574188) internal successors, (3034), 2342 states have internal predecessors, (3034), 716 states have call successors, (716), 205 states have call predecessors, (716), 204 states have return successors, (745), 699 states have call predecessors, (745), 711 states have call successors, (745) [2021-12-18 03:59:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3199 states to 3199 states and 4495 transitions. [2021-12-18 03:59:21,363 INFO L78 Accepts]: Start accepts. Automaton has 3199 states and 4495 transitions. Word has length 42 [2021-12-18 03:59:21,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:21,363 INFO L470 AbstractCegarLoop]: Abstraction has 3199 states and 4495 transitions. [2021-12-18 03:59:21,363 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:21,363 INFO L276 IsEmpty]: Start isEmpty. Operand 3199 states and 4495 transitions. [2021-12-18 03:59:21,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-18 03:59:21,364 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:21,364 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-12-18 03:59:21,401 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:21,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:21,580 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:21,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:21,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1995368413, now seen corresponding path program 1 times [2021-12-18 03:59:21,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:21,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534037886] [2021-12-18 03:59:21,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:21,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:21,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:21,584 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) [2021-12-18 03:59:21,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-18 03:59:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:22,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 2280 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 03:59:22,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-18 03:59:25,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:25,288 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:25,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534037886] [2021-12-18 03:59:25,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534037886] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:25,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:25,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 03:59:25,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213360215] [2021-12-18 03:59:25,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:25,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:59:25,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:25,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:59:25,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:25,290 INFO L87 Difference]: Start difference. First operand 3199 states and 4495 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:25,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:25,874 INFO L93 Difference]: Finished difference Result 9544 states and 13706 transitions. [2021-12-18 03:59:25,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:59:25,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2021-12-18 03:59:25,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:25,910 INFO L225 Difference]: With dead ends: 9544 [2021-12-18 03:59:25,910 INFO L226 Difference]: Without dead ends: 6367 [2021-12-18 03:59:25,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:25,928 INFO L933 BasicCegarLoop]: 1421 mSDtfsCounter, 1120 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:25,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 2545 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-18 03:59:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6367 states. [2021-12-18 03:59:26,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6367 to 6358. [2021-12-18 03:59:26,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6358 states, 4527 states have (on average 1.3293571901921803) internal successors, (6018), 4651 states have internal predecessors, (6018), 1424 states have call successors, (1424), 407 states have call predecessors, (1424), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2021-12-18 03:59:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6358 states to 6358 states and 9033 transitions. [2021-12-18 03:59:26,224 INFO L78 Accepts]: Start accepts. Automaton has 6358 states and 9033 transitions. Word has length 43 [2021-12-18 03:59:26,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:26,225 INFO L470 AbstractCegarLoop]: Abstraction has 6358 states and 9033 transitions. [2021-12-18 03:59:26,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:26,225 INFO L276 IsEmpty]: Start isEmpty. Operand 6358 states and 9033 transitions. [2021-12-18 03:59:26,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-18 03:59:26,226 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:26,226 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-12-18 03:59:26,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:26,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:26,452 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:26,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:26,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1727286224, now seen corresponding path program 1 times [2021-12-18 03:59:26,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:26,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [859391655] [2021-12-18 03:59:26,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:26,455 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:26,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:26,456 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) [2021-12-18 03:59:26,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-18 03:59:27,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:27,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 2281 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 03:59:27,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:28,891 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-18 03:59:28,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:28,891 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:28,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [859391655] [2021-12-18 03:59:28,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [859391655] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:28,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:28,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 03:59:28,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118882044] [2021-12-18 03:59:28,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:28,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:59:28,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:28,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:59:28,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:28,893 INFO L87 Difference]: Start difference. First operand 6358 states and 9033 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:29,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:29,187 INFO L93 Difference]: Finished difference Result 6365 states and 9039 transitions. [2021-12-18 03:59:29,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:59:29,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-12-18 03:59:29,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:29,217 INFO L225 Difference]: With dead ends: 6365 [2021-12-18 03:59:29,218 INFO L226 Difference]: Without dead ends: 6362 [2021-12-18 03:59:29,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:29,225 INFO L933 BasicCegarLoop]: 1423 mSDtfsCounter, 1117 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:29,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 2546 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 03:59:29,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6362 states. [2021-12-18 03:59:29,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6362 to 6359. [2021-12-18 03:59:29,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6359 states, 4528 states have (on average 1.3292844522968197) internal successors, (6019), 4652 states have internal predecessors, (6019), 1424 states have call successors, (1424), 407 states have call predecessors, (1424), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2021-12-18 03:59:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6359 states to 6359 states and 9034 transitions. [2021-12-18 03:59:29,473 INFO L78 Accepts]: Start accepts. Automaton has 6359 states and 9034 transitions. Word has length 44 [2021-12-18 03:59:29,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:29,473 INFO L470 AbstractCegarLoop]: Abstraction has 6359 states and 9034 transitions. [2021-12-18 03:59:29,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:29,474 INFO L276 IsEmpty]: Start isEmpty. Operand 6359 states and 9034 transitions. [2021-12-18 03:59:29,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-18 03:59:29,474 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:29,474 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-12-18 03:59:29,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:29,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:29,687 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:29,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:29,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2006668090, now seen corresponding path program 1 times [2021-12-18 03:59:29,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:29,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646898181] [2021-12-18 03:59:29,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:29,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:29,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:29,695 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) [2021-12-18 03:59:29,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-18 03:59:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:30,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 2282 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 03:59:30,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-18 03:59:32,261 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:32,262 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:32,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646898181] [2021-12-18 03:59:32,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646898181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:32,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:32,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 03:59:32,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155465343] [2021-12-18 03:59:32,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:32,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:59:32,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:32,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:59:32,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:32,263 INFO L87 Difference]: Start difference. First operand 6359 states and 9034 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:32,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:32,420 INFO L93 Difference]: Finished difference Result 6361 states and 9035 transitions. [2021-12-18 03:59:32,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:59:32,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2021-12-18 03:59:32,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:32,457 INFO L225 Difference]: With dead ends: 6361 [2021-12-18 03:59:32,457 INFO L226 Difference]: Without dead ends: 6358 [2021-12-18 03:59:32,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:32,462 INFO L933 BasicCegarLoop]: 1143 mSDtfsCounter, 1108 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1108 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:32,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1108 Valid, 1143 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 03:59:32,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6358 states. [2021-12-18 03:59:32,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6358 to 6358. [2021-12-18 03:59:32,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6358 states, 4528 states have (on average 1.3290636042402826) internal successors, (6018), 4651 states have internal predecessors, (6018), 1423 states have call successors, (1423), 407 states have call predecessors, (1423), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2021-12-18 03:59:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6358 states to 6358 states and 9032 transitions. [2021-12-18 03:59:32,673 INFO L78 Accepts]: Start accepts. Automaton has 6358 states and 9032 transitions. Word has length 45 [2021-12-18 03:59:32,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:32,673 INFO L470 AbstractCegarLoop]: Abstraction has 6358 states and 9032 transitions. [2021-12-18 03:59:32,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:32,673 INFO L276 IsEmpty]: Start isEmpty. Operand 6358 states and 9032 transitions. [2021-12-18 03:59:32,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-18 03:59:32,674 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:32,674 INFO L514 BasicCegarLoop]: trace histogram [4, 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] [2021-12-18 03:59:32,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:32,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:32,899 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:32,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:32,900 INFO L85 PathProgramCache]: Analyzing trace with hash -2077566477, now seen corresponding path program 1 times [2021-12-18 03:59:32,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:32,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337633163] [2021-12-18 03:59:32,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:32,903 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:32,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:32,904 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) [2021-12-18 03:59:32,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-18 03:59:33,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:33,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 03:59:33,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-18 03:59:35,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:35,383 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:35,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337633163] [2021-12-18 03:59:35,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337633163] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:35,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:35,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-18 03:59:35,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208142572] [2021-12-18 03:59:35,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:35,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:59:35,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:35,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:59:35,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:35,384 INFO L87 Difference]: Start difference. First operand 6358 states and 9032 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:35,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:35,494 INFO L93 Difference]: Finished difference Result 6360 states and 9033 transitions. [2021-12-18 03:59:35,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:59:35,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2021-12-18 03:59:35,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:35,518 INFO L225 Difference]: With dead ends: 6360 [2021-12-18 03:59:35,518 INFO L226 Difference]: Without dead ends: 6348 [2021-12-18 03:59:35,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:35,523 INFO L933 BasicCegarLoop]: 1142 mSDtfsCounter, 1105 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:35,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-18 03:59:35,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2021-12-18 03:59:35,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 6348. [2021-12-18 03:59:35,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6348 states, 4519 states have (on average 1.3288338127904404) internal successors, (6005), 4641 states have internal predecessors, (6005), 1422 states have call successors, (1422), 407 states have call predecessors, (1422), 406 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2021-12-18 03:59:35,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 9018 transitions. [2021-12-18 03:59:35,759 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 9018 transitions. Word has length 46 [2021-12-18 03:59:35,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:35,760 INFO L470 AbstractCegarLoop]: Abstraction has 6348 states and 9018 transitions. [2021-12-18 03:59:35,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-18 03:59:35,760 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 9018 transitions. [2021-12-18 03:59:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-12-18 03:59:35,769 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:35,769 INFO L514 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:59:35,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:35,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:35,991 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:35,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:35,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1227308281, now seen corresponding path program 1 times [2021-12-18 03:59:35,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:35,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57057426] [2021-12-18 03:59:35,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:35,995 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:35,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:35,996 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) [2021-12-18 03:59:35,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-18 03:59:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:37,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 2617 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 03:59:37,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:39,381 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-18 03:59:39,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:39,382 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:39,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57057426] [2021-12-18 03:59:39,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57057426] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:39,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:39,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:59:39,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392173447] [2021-12-18 03:59:39,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:39,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:59:39,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:39,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:59:39,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:39,383 INFO L87 Difference]: Start difference. First operand 6348 states and 9018 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 03:59:40,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:40,071 INFO L93 Difference]: Finished difference Result 12802 states and 18190 transitions. [2021-12-18 03:59:40,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:59:40,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 144 [2021-12-18 03:59:40,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:40,095 INFO L225 Difference]: With dead ends: 12802 [2021-12-18 03:59:40,095 INFO L226 Difference]: Without dead ends: 6476 [2021-12-18 03:59:40,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:40,115 INFO L933 BasicCegarLoop]: 1144 mSDtfsCounter, 52 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:40,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 2247 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-18 03:59:40,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6476 states. [2021-12-18 03:59:40,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6476 to 6452. [2021-12-18 03:59:40,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6452 states, 4622 states have (on average 1.3308091735179577) internal successors, (6151), 4744 states have internal predecessors, (6151), 1422 states have call successors, (1422), 408 states have call predecessors, (1422), 407 states have return successors, (1591), 1395 states have call predecessors, (1591), 1419 states have call successors, (1591) [2021-12-18 03:59:40,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6452 states to 6452 states and 9164 transitions. [2021-12-18 03:59:40,350 INFO L78 Accepts]: Start accepts. Automaton has 6452 states and 9164 transitions. Word has length 144 [2021-12-18 03:59:40,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:40,351 INFO L470 AbstractCegarLoop]: Abstraction has 6452 states and 9164 transitions. [2021-12-18 03:59:40,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-12-18 03:59:40,351 INFO L276 IsEmpty]: Start isEmpty. Operand 6452 states and 9164 transitions. [2021-12-18 03:59:40,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-18 03:59:40,356 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:40,356 INFO L514 BasicCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:59:40,402 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:40,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:40,568 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:40,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:40,569 INFO L85 PathProgramCache]: Analyzing trace with hash -481170855, now seen corresponding path program 1 times [2021-12-18 03:59:40,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:40,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539677395] [2021-12-18 03:59:40,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:40,571 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:40,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:40,572 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) [2021-12-18 03:59:40,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-18 03:59:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:41,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 2639 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 03:59:41,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:43,987 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-18 03:59:43,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:43,987 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:43,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539677395] [2021-12-18 03:59:43,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539677395] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:43,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:43,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 03:59:43,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865818385] [2021-12-18 03:59:43,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:43,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 03:59:43,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:43,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 03:59:43,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:43,988 INFO L87 Difference]: Start difference. First operand 6452 states and 9164 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 03:59:46,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:59:46,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:46,998 INFO L93 Difference]: Finished difference Result 13274 states and 18828 transitions. [2021-12-18 03:59:46,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 03:59:46,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 153 [2021-12-18 03:59:46,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:47,022 INFO L225 Difference]: With dead ends: 13274 [2021-12-18 03:59:47,022 INFO L226 Difference]: Without dead ends: 6848 [2021-12-18 03:59:47,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 03:59:47,042 INFO L933 BasicCegarLoop]: 1175 mSDtfsCounter, 208 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:47,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 2143 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-12-18 03:59:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6848 states. [2021-12-18 03:59:47,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6848 to 6824. [2021-12-18 03:59:47,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6824 states, 4946 states have (on average 1.3275374039627983) internal successors, (6566), 5068 states have internal predecessors, (6566), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 439 states have return successors, (1607), 1411 states have call predecessors, (1607), 1435 states have call successors, (1607) [2021-12-18 03:59:47,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6824 states to 6824 states and 9611 transitions. [2021-12-18 03:59:47,259 INFO L78 Accepts]: Start accepts. Automaton has 6824 states and 9611 transitions. Word has length 153 [2021-12-18 03:59:47,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:47,259 INFO L470 AbstractCegarLoop]: Abstraction has 6824 states and 9611 transitions. [2021-12-18 03:59:47,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-18 03:59:47,259 INFO L276 IsEmpty]: Start isEmpty. Operand 6824 states and 9611 transitions. [2021-12-18 03:59:47,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-18 03:59:47,263 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:47,263 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:59:47,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:47,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:47,479 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:47,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:47,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1461989513, now seen corresponding path program 1 times [2021-12-18 03:59:47,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:47,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441303528] [2021-12-18 03:59:47,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:47,483 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:47,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:47,483 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) [2021-12-18 03:59:47,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-18 03:59:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:49,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 2920 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 03:59:49,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:51,878 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-18 03:59:51,879 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:51,879 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:51,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441303528] [2021-12-18 03:59:51,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441303528] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:51,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:51,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 03:59:51,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599304173] [2021-12-18 03:59:51,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:51,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 03:59:51,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:51,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 03:59:51,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:59:51,880 INFO L87 Difference]: Start difference. First operand 6824 states and 9611 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 03:59:52,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:59:52,202 INFO L93 Difference]: Finished difference Result 13686 states and 19630 transitions. [2021-12-18 03:59:52,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:59:52,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 160 [2021-12-18 03:59:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:59:52,228 INFO L225 Difference]: With dead ends: 13686 [2021-12-18 03:59:52,228 INFO L226 Difference]: Without dead ends: 6856 [2021-12-18 03:59:52,253 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:59:52,254 INFO L933 BasicCegarLoop]: 1139 mSDtfsCounter, 0 mSDsluCounter, 3411 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4550 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 03:59:52,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4550 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 03:59:52,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6856 states. [2021-12-18 03:59:52,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6856 to 6856. [2021-12-18 03:59:52,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6856 states, 4962 states have (on average 1.3264812575574365) internal successors, (6582), 5100 states have internal predecessors, (6582), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1411 states have call predecessors, (1679), 1435 states have call successors, (1679) [2021-12-18 03:59:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6856 states to 6856 states and 9699 transitions. [2021-12-18 03:59:52,557 INFO L78 Accepts]: Start accepts. Automaton has 6856 states and 9699 transitions. Word has length 160 [2021-12-18 03:59:52,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:59:52,558 INFO L470 AbstractCegarLoop]: Abstraction has 6856 states and 9699 transitions. [2021-12-18 03:59:52,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 03:59:52,558 INFO L276 IsEmpty]: Start isEmpty. Operand 6856 states and 9699 transitions. [2021-12-18 03:59:52,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-12-18 03:59:52,563 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:59:52,563 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:59:52,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-12-18 03:59:52,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 03:59:52,779 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:59:52,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:59:52,780 INFO L85 PathProgramCache]: Analyzing trace with hash -443990667, now seen corresponding path program 1 times [2021-12-18 03:59:52,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 03:59:52,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [115148927] [2021-12-18 03:59:52,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:59:52,782 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 03:59:52,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 03:59:52,783 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 03:59:52,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-12-18 03:59:54,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:59:54,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 2954 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-18 03:59:54,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 03:59:57,192 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-18 03:59:57,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 03:59:57,193 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 03:59:57,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [115148927] [2021-12-18 03:59:57,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [115148927] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:59:57,193 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:59:57,193 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 03:59:57,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034221393] [2021-12-18 03:59:57,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:59:57,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 03:59:57,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 03:59:57,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 03:59:57,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 03:59:57,194 INFO L87 Difference]: Start difference. First operand 6856 states and 9699 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 04:00:00,001 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:00:02,078 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:00:02,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:00:02,258 INFO L93 Difference]: Finished difference Result 14422 states and 20512 transitions. [2021-12-18 04:00:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 04:00:02,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 172 [2021-12-18 04:00:02,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:00:02,296 INFO L225 Difference]: With dead ends: 14422 [2021-12-18 04:00:02,297 INFO L226 Difference]: Without dead ends: 7592 [2021-12-18 04:00:02,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:00:02,314 INFO L933 BasicCegarLoop]: 1209 mSDtfsCounter, 158 mSDsluCounter, 4691 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 5900 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-18 04:00:02,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 5900 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 25 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2021-12-18 04:00:02,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7592 states. [2021-12-18 04:00:02,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7592 to 6880. [2021-12-18 04:00:02,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6880 states, 4986 states have (on average 1.3249097472924187) internal successors, (6606), 5116 states have internal predecessors, (6606), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1419 states have call predecessors, (1679), 1435 states have call successors, (1679) [2021-12-18 04:00:02,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6880 states to 6880 states and 9723 transitions. [2021-12-18 04:00:02,552 INFO L78 Accepts]: Start accepts. Automaton has 6880 states and 9723 transitions. Word has length 172 [2021-12-18 04:00:02,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:00:02,552 INFO L470 AbstractCegarLoop]: Abstraction has 6880 states and 9723 transitions. [2021-12-18 04:00:02,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 04:00:02,553 INFO L276 IsEmpty]: Start isEmpty. Operand 6880 states and 9723 transitions. [2021-12-18 04:00:02,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-12-18 04:00:02,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:00:02,558 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:00:02,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-12-18 04:00:02,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:00:02,779 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:00:02,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:00:02,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1808771924, now seen corresponding path program 1 times [2021-12-18 04:00:02,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:00:02,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787914142] [2021-12-18 04:00:02,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:00:02,783 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:00:02,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:00:02,784 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 04:00:02,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-12-18 04:00:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:00:04,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 2971 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:00:04,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:00:06,053 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-12-18 04:00:06,053 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:00:06,054 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:00:06,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787914142] [2021-12-18 04:00:06,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787914142] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:00:06,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:00:06,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:00:06,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702468620] [2021-12-18 04:00:06,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:00:06,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:00:06,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:00:06,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:00:06,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:00:06,055 INFO L87 Difference]: Start difference. First operand 6880 states and 9723 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 04:00:08,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:00:08,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:00:08,390 INFO L93 Difference]: Finished difference Result 14822 states and 21076 transitions. [2021-12-18 04:00:08,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:00:08,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 178 [2021-12-18 04:00:08,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:00:08,416 INFO L225 Difference]: With dead ends: 14822 [2021-12-18 04:00:08,416 INFO L226 Difference]: Without dead ends: 7968 [2021-12-18 04:00:08,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:00:08,433 INFO L933 BasicCegarLoop]: 1224 mSDtfsCounter, 134 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 2366 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-18 04:00:08,433 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 2366 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-18 04:00:08,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7968 states. [2021-12-18 04:00:08,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7968 to 7056. [2021-12-18 04:00:08,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7056 states, 5162 states have (on average 1.32932971716389) internal successors, (6862), 5292 states have internal predecessors, (6862), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1419 states have call predecessors, (1679), 1435 states have call successors, (1679) [2021-12-18 04:00:08,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7056 states to 7056 states and 9979 transitions. [2021-12-18 04:00:08,723 INFO L78 Accepts]: Start accepts. Automaton has 7056 states and 9979 transitions. Word has length 178 [2021-12-18 04:00:08,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:00:08,723 INFO L470 AbstractCegarLoop]: Abstraction has 7056 states and 9979 transitions. [2021-12-18 04:00:08,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 04:00:08,724 INFO L276 IsEmpty]: Start isEmpty. Operand 7056 states and 9979 transitions. [2021-12-18 04:00:08,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-18 04:00:08,729 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:00:08,729 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:00:08,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-12-18 04:00:08,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:00:08,955 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:00:08,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:00:08,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1797415916, now seen corresponding path program 1 times [2021-12-18 04:00:08,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:00:08,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370273865] [2021-12-18 04:00:08,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:00:08,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:00:08,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:00:08,960 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 04:00:08,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-12-18 04:00:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:00:11,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 3004 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-18 04:00:11,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:00:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 04:00:11,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:00:11,926 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:00:11,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370273865] [2021-12-18 04:00:11,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370273865] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:00:11,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:00:11,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-18 04:00:11,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227930028] [2021-12-18 04:00:11,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:00:11,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-18 04:00:11,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:00:11,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-18 04:00:11,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:00:11,928 INFO L87 Difference]: Start difference. First operand 7056 states and 9979 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-18 04:00:12,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:00:12,386 INFO L93 Difference]: Finished difference Result 14134 states and 20010 transitions. [2021-12-18 04:00:12,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-18 04:00:12,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 182 [2021-12-18 04:00:12,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:00:12,414 INFO L225 Difference]: With dead ends: 14134 [2021-12-18 04:00:12,414 INFO L226 Difference]: Without dead ends: 7104 [2021-12-18 04:00:12,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-18 04:00:12,436 INFO L933 BasicCegarLoop]: 1136 mSDtfsCounter, 5 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 04:00:12,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 2269 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 04:00:12,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7104 states. [2021-12-18 04:00:12,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7104 to 7088. [2021-12-18 04:00:12,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7088 states, 5194 states have (on average 1.3288409703504043) internal successors, (6902), 5324 states have internal predecessors, (6902), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 455 states have return successors, (1679), 1419 states have call predecessors, (1679), 1435 states have call successors, (1679) [2021-12-18 04:00:12,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7088 states to 7088 states and 10019 transitions. [2021-12-18 04:00:12,665 INFO L78 Accepts]: Start accepts. Automaton has 7088 states and 10019 transitions. Word has length 182 [2021-12-18 04:00:12,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:00:12,666 INFO L470 AbstractCegarLoop]: Abstraction has 7088 states and 10019 transitions. [2021-12-18 04:00:12,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-18 04:00:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7088 states and 10019 transitions. [2021-12-18 04:00:12,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-12-18 04:00:12,673 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:00:12,673 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:00:12,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-12-18 04:00:12,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:00:12,879 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:00:12,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:00:12,880 INFO L85 PathProgramCache]: Analyzing trace with hash -112961876, now seen corresponding path program 1 times [2021-12-18 04:00:12,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:00:12,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802768133] [2021-12-18 04:00:12,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:00:12,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:00:12,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:00:12,884 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 04:00:12,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-12-18 04:00:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:00:15,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 3007 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-18 04:00:15,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:00:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 04:00:16,572 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:00:16,572 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:00:16,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802768133] [2021-12-18 04:00:16,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802768133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:00:16,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:00:16,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 04:00:16,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280307060] [2021-12-18 04:00:16,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:00:16,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:00:16,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:00:16,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:00:16,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:00:16,574 INFO L87 Difference]: Start difference. First operand 7088 states and 10019 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-18 04:00:17,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:00:17,809 INFO L93 Difference]: Finished difference Result 15614 states and 22184 transitions. [2021-12-18 04:00:17,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 04:00:17,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2021-12-18 04:00:17,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:00:17,837 INFO L225 Difference]: With dead ends: 15614 [2021-12-18 04:00:17,838 INFO L226 Difference]: Without dead ends: 8552 [2021-12-18 04:00:17,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-18 04:00:17,857 INFO L933 BasicCegarLoop]: 1313 mSDtfsCounter, 154 mSDsluCounter, 5082 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-18 04:00:17,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [170 Valid, 6395 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-18 04:00:17,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8552 states. [2021-12-18 04:00:18,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8552 to 7120. [2021-12-18 04:00:18,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7120 states, 5218 states have (on average 1.3273284783441932) internal successors, (6926), 5348 states have internal predecessors, (6926), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2021-12-18 04:00:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7120 states to 7120 states and 10051 transitions. [2021-12-18 04:00:18,143 INFO L78 Accepts]: Start accepts. Automaton has 7120 states and 10051 transitions. Word has length 184 [2021-12-18 04:00:18,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:00:18,143 INFO L470 AbstractCegarLoop]: Abstraction has 7120 states and 10051 transitions. [2021-12-18 04:00:18,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-18 04:00:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 7120 states and 10051 transitions. [2021-12-18 04:00:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-18 04:00:18,149 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:00:18,149 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:00:18,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-12-18 04:00:18,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:00:18,373 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:00:18,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:00:18,373 INFO L85 PathProgramCache]: Analyzing trace with hash 415048615, now seen corresponding path program 1 times [2021-12-18 04:00:18,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:00:18,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1513664762] [2021-12-18 04:00:18,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:00:18,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:00:18,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:00:18,378 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 04:00:18,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-12-18 04:00:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:00:20,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-18 04:00:20,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:00:21,581 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 04:00:21,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:00:22,542 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 04:00:22,542 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:00:22,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1513664762] [2021-12-18 04:00:22,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1513664762] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:00:22,543 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:00:22,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-12-18 04:00:22,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108535540] [2021-12-18 04:00:22,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:00:22,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:00:22,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:00:22,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:00:22,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:00:22,544 INFO L87 Difference]: Start difference. First operand 7120 states and 10051 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-18 04:00:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:00:23,181 INFO L93 Difference]: Finished difference Result 14294 states and 20202 transitions. [2021-12-18 04:00:23,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 04:00:23,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 185 [2021-12-18 04:00:23,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:00:23,201 INFO L225 Difference]: With dead ends: 14294 [2021-12-18 04:00:23,201 INFO L226 Difference]: Without dead ends: 7200 [2021-12-18 04:00:23,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:00:23,216 INFO L933 BasicCegarLoop]: 1139 mSDtfsCounter, 29 mSDsluCounter, 2271 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-18 04:00:23,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 3410 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-18 04:00:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7200 states. [2021-12-18 04:00:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7200 to 7160. [2021-12-18 04:00:23,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7160 states, 5258 states have (on average 1.3263598326359833) internal successors, (6974), 5388 states have internal predecessors, (6974), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2021-12-18 04:00:23,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7160 states to 7160 states and 10099 transitions. [2021-12-18 04:00:23,427 INFO L78 Accepts]: Start accepts. Automaton has 7160 states and 10099 transitions. Word has length 185 [2021-12-18 04:00:23,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:00:23,428 INFO L470 AbstractCegarLoop]: Abstraction has 7160 states and 10099 transitions. [2021-12-18 04:00:23,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-12-18 04:00:23,428 INFO L276 IsEmpty]: Start isEmpty. Operand 7160 states and 10099 transitions. [2021-12-18 04:00:23,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-12-18 04:00:23,433 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:00:23,434 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:00:23,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-12-18 04:00:23,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:00:23,651 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:00:23,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:00:23,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1423043673, now seen corresponding path program 1 times [2021-12-18 04:00:23,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:00:23,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621625302] [2021-12-18 04:00:23,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:00:23,654 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:00:23,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:00:23,655 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 04:00:23,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-12-18 04:00:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:00:25,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 04:00:25,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:00:27,365 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 04:00:27,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 04:00:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-18 04:00:29,980 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:00:29,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621625302] [2021-12-18 04:00:29,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621625302] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 04:00:29,980 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 04:00:29,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-12-18 04:00:29,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916816395] [2021-12-18 04:00:29,982 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 04:00:29,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-18 04:00:29,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:00:29,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-18 04:00:29,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-12-18 04:00:29,983 INFO L87 Difference]: Start difference. First operand 7160 states and 10099 transitions. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 10 states have internal predecessors, (124), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-18 04:00:33,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:00:33,786 INFO L93 Difference]: Finished difference Result 17198 states and 24474 transitions. [2021-12-18 04:00:33,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 04:00:33,788 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 10 states have internal predecessors, (124), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) Word has length 187 [2021-12-18 04:00:33,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:00:33,816 INFO L225 Difference]: With dead ends: 17198 [2021-12-18 04:00:33,816 INFO L226 Difference]: Without dead ends: 10064 [2021-12-18 04:00:33,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2021-12-18 04:00:33,836 INFO L933 BasicCegarLoop]: 1499 mSDtfsCounter, 323 mSDsluCounter, 9957 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 11456 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-18 04:00:33,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [355 Valid, 11456 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-18 04:00:33,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10064 states. [2021-12-18 04:00:34,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10064 to 7152. [2021-12-18 04:00:34,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7152 states, 5250 states have (on average 1.326857142857143) internal successors, (6966), 5380 states have internal predecessors, (6966), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2021-12-18 04:00:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7152 states to 7152 states and 10091 transitions. [2021-12-18 04:00:34,139 INFO L78 Accepts]: Start accepts. Automaton has 7152 states and 10091 transitions. Word has length 187 [2021-12-18 04:00:34,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:00:34,139 INFO L470 AbstractCegarLoop]: Abstraction has 7152 states and 10091 transitions. [2021-12-18 04:00:34,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 10 states have internal predecessors, (124), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (18), 3 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-18 04:00:34,140 INFO L276 IsEmpty]: Start isEmpty. Operand 7152 states and 10091 transitions. [2021-12-18 04:00:34,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-18 04:00:34,146 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:00:34,146 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:00:34,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-12-18 04:00:34,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:00:34,362 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:00:34,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:00:34,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1679269715, now seen corresponding path program 1 times [2021-12-18 04:00:34,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:00:34,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151002056] [2021-12-18 04:00:34,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:00:34,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:00:34,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:00:34,366 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 04:00:34,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-12-18 04:00:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 04:00:36,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 3068 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-18 04:00:36,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 04:00:37,723 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-18 04:00:37,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 04:00:37,723 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-18 04:00:37,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151002056] [2021-12-18 04:00:37,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151002056] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 04:00:37,723 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 04:00:37,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 04:00:37,723 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100661706] [2021-12-18 04:00:37,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 04:00:37,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 04:00:37,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-18 04:00:37,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 04:00:37,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 04:00:37,725 INFO L87 Difference]: Start difference. First operand 7152 states and 10091 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-18 04:00:39,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 04:00:44,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 04:00:44,133 INFO L93 Difference]: Finished difference Result 18160 states and 25375 transitions. [2021-12-18 04:00:44,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 04:00:44,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 201 [2021-12-18 04:00:44,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 04:00:44,161 INFO L225 Difference]: With dead ends: 18160 [2021-12-18 04:00:44,161 INFO L226 Difference]: Without dead ends: 11034 [2021-12-18 04:00:44,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2021-12-18 04:00:44,177 INFO L933 BasicCegarLoop]: 1607 mSDtfsCounter, 624 mSDsluCounter, 5506 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 40 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 7113 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-18 04:00:44,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 7113 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 111 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2021-12-18 04:00:44,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11034 states. [2021-12-18 04:00:44,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11034 to 7184. [2021-12-18 04:00:44,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7184 states, 5282 states have (on average 1.324876940552821) internal successors, (6998), 5412 states have internal predecessors, (6998), 1438 states have call successors, (1438), 440 states have call predecessors, (1438), 463 states have return successors, (1687), 1427 states have call predecessors, (1687), 1435 states have call successors, (1687) [2021-12-18 04:00:44,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7184 states to 7184 states and 10123 transitions. [2021-12-18 04:00:44,477 INFO L78 Accepts]: Start accepts. Automaton has 7184 states and 10123 transitions. Word has length 201 [2021-12-18 04:00:44,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 04:00:44,478 INFO L470 AbstractCegarLoop]: Abstraction has 7184 states and 10123 transitions. [2021-12-18 04:00:44,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2021-12-18 04:00:44,478 INFO L276 IsEmpty]: Start isEmpty. Operand 7184 states and 10123 transitions. [2021-12-18 04:00:44,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-18 04:00:44,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 04:00:44,481 INFO L514 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 04:00:44,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-12-18 04:00:44,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-18 04:00:44,707 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 04:00:44,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 04:00:44,708 INFO L85 PathProgramCache]: Analyzing trace with hash 399406037, now seen corresponding path program 1 times [2021-12-18 04:00:44,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-18 04:00:44,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942870495] [2021-12-18 04:00:44,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 04:00:44,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-18 04:00:44,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-18 04:00:44,711 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-18 04:00:44,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process Killed by 15