./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.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 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:22:02,538 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:22:02,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:22:02,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:22:02,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:22:02,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:22:02,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:22:02,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:22:02,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:22:02,590 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:22:02,591 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:22:02,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:22:02,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:22:02,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:22:02,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:22:02,599 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:22:02,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:22:02,600 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:22:02,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:22:02,607 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:22:02,608 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:22:02,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:22:02,610 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:22:02,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:22:02,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:22:02,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:22:02,616 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:22:02,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:22:02,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:22:02,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:22:02,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:22:02,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:22:02,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:22:02,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:22:02,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:22:02,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:22:02,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:22:02,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:22:02,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:22:02,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:22:02,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:22:02,626 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:22:02,657 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:22:02,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:22:02,657 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:22:02,657 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:22:02,658 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:22:02,658 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:22:02,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:22:02,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:22:02,659 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:22:02,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:22:02,660 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:22:02,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:22:02,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:22:02,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:22:02,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:22:02,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:22:02,661 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:22:02,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:22:02,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:22:02,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:22:02,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:22:02,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:22:02,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:22:02,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:22:02,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:22:02,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:22:02,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:22:02,664 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:22:02,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:22:02,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:22:02,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:22:02,665 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 [2021-12-21 16:22:02,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:22:02,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:22:02,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:22:02,857 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:22:02,861 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:22:02,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-12-21 16:22:02,902 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cbb98b0e/61e98cfae9af4d31a7240decb61d8ed3/FLAGab9ad25ad [2021-12-21 16:22:03,600 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:22:03,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-12-21 16:22:03,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cbb98b0e/61e98cfae9af4d31a7240decb61d8ed3/FLAGab9ad25ad [2021-12-21 16:22:03,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cbb98b0e/61e98cfae9af4d31a7240decb61d8ed3 [2021-12-21 16:22:03,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:22:03,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:22:03,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:22:03,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:22:03,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:22:03,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:22:03" (1/1) ... [2021-12-21 16:22:03,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32df166b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:03, skipping insertion in model container [2021-12-21 16:22:03,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:22:03" (1/1) ... [2021-12-21 16:22:03,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:22:03,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:22:04,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2021-12-21 16:22:05,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:22:05,034 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:22:05,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2021-12-21 16:22:05,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:22:05,349 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:22:05,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05 WrapperNode [2021-12-21 16:22:05,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:22:05,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:22:05,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:22:05,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:22:05,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,554 INFO L137 Inliner]: procedures = 258, calls = 1803, calls flagged for inlining = 103, calls inlined = 99, statements flattened = 4499 [2021-12-21 16:22:05,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:22:05,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:22:05,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:22:05,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:22:05,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:22:05,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:22:05,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:22:05,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:22:05,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (1/1) ... [2021-12-21 16:22:05,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:22:05,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:22:05,853 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) [2021-12-21 16:22:05,884 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-21 16:22:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-21 16:22:05,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2021-12-21 16:22:05,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2021-12-21 16:22:05,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:22:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:22:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:22:05,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:22:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:22:05,886 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:22:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2021-12-21 16:22:05,886 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2021-12-21 16:22:05,886 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2021-12-21 16:22:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2021-12-21 16:22:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-12-21 16:22:05,887 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-12-21 16:22:05,871 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 [2021-12-21 16:22:05,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-21 16:22:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-21 16:22:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-21 16:22:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-21 16:22:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:22:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:22:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-21 16:22:05,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-21 16:22:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-21 16:22:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-21 16:22:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-12-21 16:22:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-12-21 16:22:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_50 [2021-12-21 16:22:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_50 [2021-12-21 16:22:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:22:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:22:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:22:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:22:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:22:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:22:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:22:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:22:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2021-12-21 16:22:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2021-12-21 16:22:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-21 16:22:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-21 16:22:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2021-12-21 16:22:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2021-12-21 16:22:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-21 16:22:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-21 16:22:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2021-12-21 16:22:05,891 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2021-12-21 16:22:05,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2021-12-21 16:22:05,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2021-12-21 16:22:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-12-21 16:22:05,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-12-21 16:22:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:22:05,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2021-12-21 16:22:05,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2021-12-21 16:22:05,893 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:22:05,893 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:22:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-21 16:22:05,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-21 16:22:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:22:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2021-12-21 16:22:05,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2021-12-21 16:22:05,894 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-21 16:22:05,895 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-21 16:22:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-12-21 16:22:05,895 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-12-21 16:22:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2021-12-21 16:22:05,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2021-12-21 16:22:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2021-12-21 16:22:05,895 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2021-12-21 16:22:05,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2021-12-21 16:22:05,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2021-12-21 16:22:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:22:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:22:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-21 16:22:05,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-21 16:22:05,896 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:22:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:22:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-12-21 16:22:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-12-21 16:22:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 16:22:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 16:22:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-21 16:22:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-21 16:22:05,897 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2021-12-21 16:22:05,897 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2021-12-21 16:22:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-21 16:22:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-21 16:22:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-12-21 16:22:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-12-21 16:22:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2021-12-21 16:22:05,898 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2021-12-21 16:22:05,898 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-21 16:22:05,899 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-21 16:22:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:22:05,899 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-12-21 16:22:05,900 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-12-21 16:22:05,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:22:05,900 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2021-12-21 16:22:05,900 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2021-12-21 16:22:05,900 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-12-21 16:22:05,900 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-12-21 16:22:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-21 16:22:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-21 16:22:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:22:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-21 16:22:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-21 16:22:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:22:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:22:05,901 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 16:22:05,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 16:22:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-12-21 16:22:05,902 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-12-21 16:22:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-21 16:22:05,902 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-21 16:22:05,902 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:22:05,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:22:05,903 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-21 16:22:05,903 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-21 16:22:05,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:22:05,905 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2021-12-21 16:22:05,905 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2021-12-21 16:22:05,905 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2021-12-21 16:22:05,906 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2021-12-21 16:22:05,906 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2021-12-21 16:22:05,907 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2021-12-21 16:22:05,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:22:05,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:22:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2021-12-21 16:22:05,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2021-12-21 16:22:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:22:05,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:22:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:22:05,912 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2021-12-21 16:22:05,912 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2021-12-21 16:22:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2021-12-21 16:22:05,913 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2021-12-21 16:22:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:22:05,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:22:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-21 16:22:05,913 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-21 16:22:05,913 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2021-12-21 16:22:05,913 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2021-12-21 16:22:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:22:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2021-12-21 16:22:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2021-12-21 16:22:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_9 [2021-12-21 16:22:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_9 [2021-12-21 16:22:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 16:22:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 16:22:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:22:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2021-12-21 16:22:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2021-12-21 16:22:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:22:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:22:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2021-12-21 16:22:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2021-12-21 16:22:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-12-21 16:22:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-12-21 16:22:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2021-12-21 16:22:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2021-12-21 16:22:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-21 16:22:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-21 16:22:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-21 16:22:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-21 16:22:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-12-21 16:22:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-12-21 16:22:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2021-12-21 16:22:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2021-12-21 16:22:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2021-12-21 16:22:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2021-12-21 16:22:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2021-12-21 16:22:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2021-12-21 16:22:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-21 16:22:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-21 16:22:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-21 16:22:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-21 16:22:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-12-21 16:22:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-12-21 16:22:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-12-21 16:22:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-12-21 16:22:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-21 16:22:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-21 16:22:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-21 16:22:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_47 [2021-12-21 16:22:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_47 [2021-12-21 16:22:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-21 16:22:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-21 16:22:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:22:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-12-21 16:22:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-12-21 16:22:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2021-12-21 16:22:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2021-12-21 16:22:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-21 16:22:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-21 16:22:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2021-12-21 16:22:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2021-12-21 16:22:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2021-12-21 16:22:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2021-12-21 16:22:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-21 16:22:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:22:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:22:06,683 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:22:06,686 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:22:07,572 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:22:09,890 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:22:09,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:22:09,910 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:22:09,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:22:09 BoogieIcfgContainer [2021-12-21 16:22:09,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:22:09,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:22:09,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:22:09,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:22:09,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:22:03" (1/3) ... [2021-12-21 16:22:09,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e1c926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:22:09, skipping insertion in model container [2021-12-21 16:22:09,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:22:05" (2/3) ... [2021-12-21 16:22:09,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e1c926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:22:09, skipping insertion in model container [2021-12-21 16:22:09,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:22:09" (3/3) ... [2021-12-21 16:22:09,920 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2021-12-21 16:22:09,923 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:22:09,924 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:22:09,971 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:22:09,975 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 [2021-12-21 16:22:09,976 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:22:10,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 1573 states, 1105 states have (on average 1.4) internal successors, (1547), 1170 states have internal predecessors, (1547), 375 states have call successors, (375), 92 states have call predecessors, (375), 91 states have return successors, (366), 340 states have call predecessors, (366), 366 states have call successors, (366) [2021-12-21 16:22:10,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-21 16:22:10,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:22:10,042 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:22:10,043 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:22:10,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:22:10,047 INFO L85 PathProgramCache]: Analyzing trace with hash 553944102, now seen corresponding path program 1 times [2021-12-21 16:22:10,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:22:10,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410284246] [2021-12-21 16:22:10,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:22:10,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:22:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:22:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:22:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:10,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:22:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:22:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:10,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:22:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:22:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:22:10,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:22:10,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410284246] [2021-12-21 16:22:10,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410284246] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:22:10,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:22:10,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:22:10,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690263100] [2021-12-21 16:22:10,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:22:10,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:22:10,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:22:10,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:22:10,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:22:10,760 INFO L87 Difference]: Start difference. First operand has 1573 states, 1105 states have (on average 1.4) internal successors, (1547), 1170 states have internal predecessors, (1547), 375 states have call successors, (375), 92 states have call predecessors, (375), 91 states have return successors, (366), 340 states have call predecessors, (366), 366 states have call successors, (366) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:22:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:22:17,251 INFO L93 Difference]: Finished difference Result 3299 states and 4906 transitions. [2021-12-21 16:22:17,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 16:22:17,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 113 [2021-12-21 16:22:17,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:22:17,281 INFO L225 Difference]: With dead ends: 3299 [2021-12-21 16:22:17,281 INFO L226 Difference]: Without dead ends: 1715 [2021-12-21 16:22:17,302 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:22:17,304 INFO L933 BasicCegarLoop]: 2104 mSDtfsCounter, 1162 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 1612 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 1612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:22:17,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1193 Valid, 3636 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 1612 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2021-12-21 16:22:17,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2021-12-21 16:22:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1557. [2021-12-21 16:22:17,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1557 states, 1100 states have (on average 1.3909090909090909) internal successors, (1530), 1154 states have internal predecessors, (1530), 366 states have call successors, (366), 91 states have call predecessors, (366), 90 states have return successors, (361), 335 states have call predecessors, (361), 361 states have call successors, (361) [2021-12-21 16:22:17,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2257 transitions. [2021-12-21 16:22:17,505 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2257 transitions. Word has length 113 [2021-12-21 16:22:17,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:22:17,506 INFO L470 AbstractCegarLoop]: Abstraction has 1557 states and 2257 transitions. [2021-12-21 16:22:17,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:22:17,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2257 transitions. [2021-12-21 16:22:17,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-21 16:22:17,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:22:17,517 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:22:17,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:22:17,518 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:22:17,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:22:17,518 INFO L85 PathProgramCache]: Analyzing trace with hash -486862562, now seen corresponding path program 1 times [2021-12-21 16:22:17,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:22:17,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840271416] [2021-12-21 16:22:17,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:22:17,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:22:17,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:22:17,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:22:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:22:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:22:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:22:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:17,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:22:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:17,860 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:22:17,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:22:17,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840271416] [2021-12-21 16:22:17,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840271416] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:22:17,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:22:17,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:22:17,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108662144] [2021-12-21 16:22:17,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:22:17,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:22:17,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:22:17,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:22:17,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:22:17,863 INFO L87 Difference]: Start difference. First operand 1557 states and 2257 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:22:23,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:22:28,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:22:28,917 INFO L93 Difference]: Finished difference Result 4937 states and 7621 transitions. [2021-12-21 16:22:28,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:22:28,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 113 [2021-12-21 16:22:28,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:22:29,001 INFO L225 Difference]: With dead ends: 4937 [2021-12-21 16:22:29,014 INFO L226 Difference]: Without dead ends: 3403 [2021-12-21 16:22:29,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:22:29,025 INFO L933 BasicCegarLoop]: 2635 mSDtfsCounter, 4138 mSDsluCounter, 3714 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 2165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 6349 SdHoareTripleChecker+Invalid, 5202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2165 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:22:29,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4340 Valid, 6349 Invalid, 5202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2165 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2021-12-21 16:22:29,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2021-12-21 16:22:29,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3173. [2021-12-21 16:22:29,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3173 states, 2237 states have (on average 1.3844434510505141) internal successors, (3097), 2352 states have internal predecessors, (3097), 731 states have call successors, (731), 180 states have call predecessors, (731), 204 states have return successors, (933), 693 states have call predecessors, (933), 726 states have call successors, (933) [2021-12-21 16:22:29,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 4761 transitions. [2021-12-21 16:22:29,268 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 4761 transitions. Word has length 113 [2021-12-21 16:22:29,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:22:29,271 INFO L470 AbstractCegarLoop]: Abstraction has 3173 states and 4761 transitions. [2021-12-21 16:22:29,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:22:29,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 4761 transitions. [2021-12-21 16:22:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-21 16:22:29,276 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:22:29,276 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:22:29,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:22:29,277 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:22:29,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:22:29,277 INFO L85 PathProgramCache]: Analyzing trace with hash 2086592435, now seen corresponding path program 1 times [2021-12-21 16:22:29,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:22:29,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031585223] [2021-12-21 16:22:29,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:22:29,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:22:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:22:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:29,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:22:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:22:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:22:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:22:29,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:22:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:22:29,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:22:29,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031585223] [2021-12-21 16:22:29,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031585223] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:22:29,555 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:22:29,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:22:29,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913354912] [2021-12-21 16:22:29,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:22:29,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:22:29,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:22:29,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:22:29,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:22:29,559 INFO L87 Difference]: Start difference. First operand 3173 states and 4761 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:22:43,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:22:43,342 INFO L93 Difference]: Finished difference Result 9905 states and 15904 transitions. [2021-12-21 16:22:43,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:22:43,343 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2021-12-21 16:22:43,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:22:43,425 INFO L225 Difference]: With dead ends: 9905 [2021-12-21 16:22:43,425 INFO L226 Difference]: Without dead ends: 6755 [2021-12-21 16:22:43,516 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:22:43,519 INFO L933 BasicCegarLoop]: 2683 mSDtfsCounter, 4097 mSDsluCounter, 4557 mSDsCounter, 0 mSdLazyCounter, 4104 mSolverCounterSat, 2136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4306 SdHoareTripleChecker+Valid, 7240 SdHoareTripleChecker+Invalid, 6240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2136 IncrementalHoareTripleChecker+Valid, 4104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-12-21 16:22:43,523 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4306 Valid, 7240 Invalid, 6240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2136 Valid, 4104 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2021-12-21 16:22:43,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6755 states. [2021-12-21 16:22:43,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6755 to 6338. [2021-12-21 16:22:43,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6338 states, 4468 states have (on average 1.3831692032229186) internal successors, (6180), 4701 states have internal predecessors, (6180), 1455 states have call successors, (1455), 358 states have call predecessors, (1455), 414 states have return successors, (2225), 1387 states have call predecessors, (2225), 1450 states have call successors, (2225) [2021-12-21 16:22:43,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6338 states to 6338 states and 9860 transitions. [2021-12-21 16:22:43,758 INFO L78 Accepts]: Start accepts. Automaton has 6338 states and 9860 transitions. Word has length 114 [2021-12-21 16:22:43,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:22:43,758 INFO L470 AbstractCegarLoop]: Abstraction has 6338 states and 9860 transitions. [2021-12-21 16:22:43,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:22:43,759 INFO L276 IsEmpty]: Start isEmpty. Operand 6338 states and 9860 transitions. [2021-12-21 16:22:43,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-21 16:22:43,766 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:22:43,767 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:22:43,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:22:43,767 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:22:43,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:22:43,768 INFO L85 PathProgramCache]: Analyzing trace with hash 259323585, now seen corresponding path program 1 times [2021-12-21 16:22:43,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:22:43,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050126341] [2021-12-21 16:22:43,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:22:43,769 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:22:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:22:43,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:22:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:22:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:43,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:22:43,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:22:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:22:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:43,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:44,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:44,004 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:22:44,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:22:44,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050126341] [2021-12-21 16:22:44,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050126341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:22:44,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:22:44,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:22:44,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260057974] [2021-12-21 16:22:44,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:22:44,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:22:44,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:22:44,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:22:44,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:22:44,008 INFO L87 Difference]: Start difference. First operand 6338 states and 9860 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:22:51,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:22:51,069 INFO L93 Difference]: Finished difference Result 6753 states and 10628 transitions. [2021-12-21 16:22:51,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:22:51,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2021-12-21 16:22:51,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:22:51,110 INFO L225 Difference]: With dead ends: 6753 [2021-12-21 16:22:51,110 INFO L226 Difference]: Without dead ends: 6750 [2021-12-21 16:22:51,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:22:51,116 INFO L933 BasicCegarLoop]: 2675 mSDtfsCounter, 5211 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 2045 mSolverCounterSat, 3086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5420 SdHoareTripleChecker+Valid, 5433 SdHoareTripleChecker+Invalid, 5131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3086 IncrementalHoareTripleChecker+Valid, 2045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-12-21 16:22:51,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5420 Valid, 5433 Invalid, 5131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3086 Valid, 2045 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2021-12-21 16:22:51,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6750 states. [2021-12-21 16:22:51,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6750 to 6339. [2021-12-21 16:22:51,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6339 states, 4469 states have (on average 1.3830834638621616) internal successors, (6181), 4702 states have internal predecessors, (6181), 1455 states have call successors, (1455), 358 states have call predecessors, (1455), 414 states have return successors, (2225), 1387 states have call predecessors, (2225), 1450 states have call successors, (2225) [2021-12-21 16:22:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6339 states to 6339 states and 9861 transitions. [2021-12-21 16:22:51,451 INFO L78 Accepts]: Start accepts. Automaton has 6339 states and 9861 transitions. Word has length 115 [2021-12-21 16:22:51,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:22:51,452 INFO L470 AbstractCegarLoop]: Abstraction has 6339 states and 9861 transitions. [2021-12-21 16:22:51,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:22:51,453 INFO L276 IsEmpty]: Start isEmpty. Operand 6339 states and 9861 transitions. [2021-12-21 16:22:51,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-21 16:22:51,462 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:22:51,462 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:22:51,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:22:51,463 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:22:51,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:22:51,464 INFO L85 PathProgramCache]: Analyzing trace with hash -551431050, now seen corresponding path program 1 times [2021-12-21 16:22:51,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:22:51,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449986957] [2021-12-21 16:22:51,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:22:51,465 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:22:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:22:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:22:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:51,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:22:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:51,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:22:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:22:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:22:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:22:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:22:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:22:51,888 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:22:51,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:22:51,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449986957] [2021-12-21 16:22:51,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449986957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:22:51,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:22:51,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:22:51,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700721870] [2021-12-21 16:22:51,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:22:51,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:22:51,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:22:51,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:22:51,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:22:51,891 INFO L87 Difference]: Start difference. First operand 6339 states and 9861 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:00,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:23:00,638 INFO L93 Difference]: Finished difference Result 6749 states and 10624 transitions. [2021-12-21 16:23:00,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:23:00,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 116 [2021-12-21 16:23:00,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:23:00,665 INFO L225 Difference]: With dead ends: 6749 [2021-12-21 16:23:00,666 INFO L226 Difference]: Without dead ends: 6746 [2021-12-21 16:23:00,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:23:00,669 INFO L933 BasicCegarLoop]: 2047 mSDtfsCounter, 3001 mSDsluCounter, 2239 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 1268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 4286 SdHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1268 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-12-21 16:23:00,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3208 Valid, 4286 Invalid, 3578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1268 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-12-21 16:23:00,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6746 states. [2021-12-21 16:23:00,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6746 to 6338. [2021-12-21 16:23:00,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6338 states, 4469 states have (on average 1.3828597001566345) internal successors, (6180), 4701 states have internal predecessors, (6180), 1454 states have call successors, (1454), 358 states have call predecessors, (1454), 414 states have return successors, (2225), 1387 states have call predecessors, (2225), 1450 states have call successors, (2225) [2021-12-21 16:23:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6338 states to 6338 states and 9859 transitions. [2021-12-21 16:23:00,866 INFO L78 Accepts]: Start accepts. Automaton has 6338 states and 9859 transitions. Word has length 116 [2021-12-21 16:23:00,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:23:00,867 INFO L470 AbstractCegarLoop]: Abstraction has 6338 states and 9859 transitions. [2021-12-21 16:23:00,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 6338 states and 9859 transitions. [2021-12-21 16:23:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-21 16:23:00,869 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:23:00,869 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:23:00,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 16:23:00,870 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:23:00,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:23:00,870 INFO L85 PathProgramCache]: Analyzing trace with hash 84983908, now seen corresponding path program 1 times [2021-12-21 16:23:00,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:23:00,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931606147] [2021-12-21 16:23:00,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:23:00,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:23:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:23:00,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:00,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:00,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:00,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:23:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:00,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:00,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:23:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:01,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:01,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:23:01,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:01,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:01,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:01,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:01,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:23:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:01,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:01,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:23:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:01,057 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-21 16:23:01,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:23:01,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931606147] [2021-12-21 16:23:01,057 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931606147] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:23:01,057 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:23:01,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:23:01,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631344558] [2021-12-21 16:23:01,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:23:01,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:23:01,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:23:01,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:23:01,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:23:01,059 INFO L87 Difference]: Start difference. First operand 6338 states and 9859 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:07,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:23:07,363 INFO L93 Difference]: Finished difference Result 6748 states and 10622 transitions. [2021-12-21 16:23:07,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:23:07,364 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2021-12-21 16:23:07,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:23:07,395 INFO L225 Difference]: With dead ends: 6748 [2021-12-21 16:23:07,395 INFO L226 Difference]: Without dead ends: 6715 [2021-12-21 16:23:07,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:23:07,403 INFO L933 BasicCegarLoop]: 2044 mSDtfsCounter, 3000 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 1626 mSolverCounterSat, 1269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3207 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1269 IncrementalHoareTripleChecker+Valid, 1626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-12-21 16:23:07,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3207 Valid, 3596 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1269 Valid, 1626 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2021-12-21 16:23:07,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6715 states. [2021-12-21 16:23:07,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6715 to 6307. [2021-12-21 16:23:07,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6307 states, 4452 states have (on average 1.383423180592992) internal successors, (6159), 4683 states have internal predecessors, (6159), 1441 states have call successors, (1441), 357 states have call predecessors, (1441), 413 states have return successors, (2189), 1375 states have call predecessors, (2189), 1438 states have call successors, (2189) [2021-12-21 16:23:07,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6307 states to 6307 states and 9789 transitions. [2021-12-21 16:23:07,613 INFO L78 Accepts]: Start accepts. Automaton has 6307 states and 9789 transitions. Word has length 117 [2021-12-21 16:23:07,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:23:07,613 INFO L470 AbstractCegarLoop]: Abstraction has 6307 states and 9789 transitions. [2021-12-21 16:23:07,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-21 16:23:07,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6307 states and 9789 transitions. [2021-12-21 16:23:07,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-21 16:23:07,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:23:07,625 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:23:07,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 16:23:07,625 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:23:07,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:23:07,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1591193740, now seen corresponding path program 1 times [2021-12-21 16:23:07,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:23:07,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361886679] [2021-12-21 16:23:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:23:07,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:23:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:23:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:23:07,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:23:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:23:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:23:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-21 16:23:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 16:23:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:07,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-21 16:23:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-21 16:23:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-21 16:23:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-21 16:23:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-21 16:23:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-21 16:23:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:23:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:08,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 16:23:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:23:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-12-21 16:23:08,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:23:08,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361886679] [2021-12-21 16:23:08,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361886679] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:23:08,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:23:08,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-21 16:23:08,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182718273] [2021-12-21 16:23:08,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:23:08,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-21 16:23:08,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:23:08,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-21 16:23:08,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-21 16:23:08,022 INFO L87 Difference]: Start difference. First operand 6307 states and 9789 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)