./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:54:27,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:54:27,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:54:27,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:54:27,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:54:27,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:54:27,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:54:27,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:54:27,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:54:27,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:54:27,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:54:27,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:54:27,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:54:27,813 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:54:27,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:54:27,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:54:27,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:54:27,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:54:27,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:54:27,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:54:27,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:54:27,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:54:27,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:54:27,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:54:27,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:54:27,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:54:27,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:54:27,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:54:27,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:54:27,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:54:27,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:54:27,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:54:27,825 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:54:27,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:54:27,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:54:27,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:54:27,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:54:27,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:54:27,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:54:27,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:54:27,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:54:27,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:54:27,843 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:54:27,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:54:27,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:54:27,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:54:27,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:54:27,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:54:27,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:54:27,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:54:27,850 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:54:27,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:54:27,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:54:27,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:54:27,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:54:27,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:54:27,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:54:27,852 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:54:27,852 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:54:27,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:54:27,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:54:27,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:54:27,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:54:27,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:54:27,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:54:27,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:54:27,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:54:27,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:54:27,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:54:27,854 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:54:27,854 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:54:27,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:54:27,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:54:27,855 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6150b3a515973ce4119efed812e463608b94129eea9915abf4784f091ce6f187 [2021-12-14 17:54:28,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:54:28,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:54:28,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:54:28,093 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:54:28,094 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:54:28,095 INFO L432 ainManager$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 [2021-12-14 17:54:28,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee05509d/a8442d49119f45a99079032514b7e59a/FLAG0b0f6a8d6 [2021-12-14 17:54:28,700 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:54:28,701 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 [2021-12-14 17:54:28,736 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee05509d/a8442d49119f45a99079032514b7e59a/FLAG0b0f6a8d6 [2021-12-14 17:54:28,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee05509d/a8442d49119f45a99079032514b7e59a [2021-12-14 17:54:28,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:54:28,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:54:28,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:54:28,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:54:28,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:54:28,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:54:28" (1/1) ... [2021-12-14 17:54:28,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78110803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:28, skipping insertion in model container [2021-12-14 17:54:28,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:54:28" (1/1) ... [2021-12-14 17:54:28,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:54:28,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:54:29,961 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] [2021-12-14 17:54:29,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:54:30,019 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:54:30,272 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] [2021-12-14 17:54:30,283 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:54:30,367 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:54:30,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30 WrapperNode [2021-12-14 17:54:30,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:54:30,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:54:30,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:54:30,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:54:30,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,530 INFO L137 Inliner]: procedures = 258, calls = 1803, calls flagged for inlining = 103, calls inlined = 99, statements flattened = 4499 [2021-12-14 17:54:30,530 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:54:30,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:54:30,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:54:30,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:54:30,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:54:30,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:54:30,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:54:30,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:54:30,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (1/1) ... [2021-12-14 17:54:30,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:54:30,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:54:30,817 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) [2021-12-14 17:54:30,849 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 [2021-12-14 17:54:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 17:54:30,867 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 17:54:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2021-12-14 17:54:30,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2021-12-14 17:54:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:54:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:54:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:54:30,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:54:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 17:54:30,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 17:54:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2021-12-14 17:54:30,869 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2021-12-14 17:54:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2021-12-14 17:54:30,869 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2021-12-14 17:54:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2021-12-14 17:54:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2021-12-14 17:54:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-14 17:54:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-14 17:54:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-12-14 17:54:30,870 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-12-14 17:54:30,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:54:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:54:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-14 17:54:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-14 17:54:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-14 17:54:30,871 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-14 17:54:30,871 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2021-12-14 17:54:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2021-12-14 17:54:30,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_50 [2021-12-14 17:54:30,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_50 [2021-12-14 17:54:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:54:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:54:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:54:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:54:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:54:30,873 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:54:30,873 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:54:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:54:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2021-12-14 17:54:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2021-12-14 17:54:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-14 17:54:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-14 17:54:30,874 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2021-12-14 17:54:30,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2021-12-14 17:54:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 17:54:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-14 17:54:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2021-12-14 17:54:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2021-12-14 17:54:30,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2021-12-14 17:54:30,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2021-12-14 17:54:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2021-12-14 17:54:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2021-12-14 17:54:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:54:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2021-12-14 17:54:30,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2021-12-14 17:54:30,876 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:54:30,877 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:54:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2021-12-14 17:54:30,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2021-12-14 17:54:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:54:30,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2021-12-14 17:54:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2021-12-14 17:54:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-14 17:54:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-14 17:54:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2021-12-14 17:54:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2021-12-14 17:54:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2021-12-14 17:54:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2021-12-14 17:54:30,879 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2021-12-14 17:54:30,879 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2021-12-14 17:54:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2021-12-14 17:54:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2021-12-14 17:54:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:54:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:54:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-14 17:54:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-14 17:54:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:54:30,880 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:54:30,880 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2021-12-14 17:54:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2021-12-14 17:54:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:54:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:54:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 17:54:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 17:54:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2021-12-14 17:54:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2021-12-14 17:54:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-12-14 17:54:30,881 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-12-14 17:54:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2021-12-14 17:54:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2021-12-14 17:54:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2021-12-14 17:54:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2021-12-14 17:54:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-14 17:54:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-14 17:54:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:54:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2021-12-14 17:54:30,883 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2021-12-14 17:54:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:54:30,883 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2021-12-14 17:54:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2021-12-14 17:54:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2021-12-14 17:54:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2021-12-14 17:54:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-12-14 17:54:30,884 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-12-14 17:54:30,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:54:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-14 17:54:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-14 17:54:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:54:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:54:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-14 17:54:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-14 17:54:30,885 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2021-12-14 17:54:30,885 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2021-12-14 17:54:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-14 17:54:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-14 17:54:30,886 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:54:30,886 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:54:30,887 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-12-14 17:54:30,887 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-12-14 17:54:30,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:54:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2021-12-14 17:54:30,889 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2021-12-14 17:54:30,889 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2021-12-14 17:54:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2021-12-14 17:54:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2021-12-14 17:54:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2021-12-14 17:54:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:54:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:54:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2021-12-14 17:54:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2021-12-14 17:54:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 17:54:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 17:54:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:54:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2021-12-14 17:54:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2021-12-14 17:54:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2021-12-14 17:54:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2021-12-14 17:54:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 17:54:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 17:54:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-12-14 17:54:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-12-14 17:54:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2021-12-14 17:54:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2021-12-14 17:54:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:54:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2021-12-14 17:54:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2021-12-14 17:54:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_9 [2021-12-14 17:54:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_9 [2021-12-14 17:54:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 17:54:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 17:54:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:54:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2021-12-14 17:54:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2021-12-14 17:54:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:54:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:54:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2021-12-14 17:54:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2021-12-14 17:54:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2021-12-14 17:54:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2021-12-14 17:54:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2021-12-14 17:54:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2021-12-14 17:54:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-14 17:54:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-14 17:54:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 17:54:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 17:54:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2021-12-14 17:54:30,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2021-12-14 17:54:30,899 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2021-12-14 17:54:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2021-12-14 17:54:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2021-12-14 17:54:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2021-12-14 17:54:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2021-12-14 17:54:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2021-12-14 17:54:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 17:54:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 17:54:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-14 17:54:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-14 17:54:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2021-12-14 17:54:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2021-12-14 17:54:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-12-14 17:54:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-12-14 17:54:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-14 17:54:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-14 17:54:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-14 17:54:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_47 [2021-12-14 17:54:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_47 [2021-12-14 17:54:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-14 17:54:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-14 17:54:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:54:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-12-14 17:54:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-12-14 17:54:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2021-12-14 17:54:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2021-12-14 17:54:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-14 17:54:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-14 17:54:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2021-12-14 17:54:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2021-12-14 17:54:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2021-12-14 17:54:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2021-12-14 17:54:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-12-14 17:54:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:54:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:54:31,436 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:54:31,439 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:54:32,220 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:54:34,328 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:54:34,338 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:54:34,339 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:54:34,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:54:34 BoogieIcfgContainer [2021-12-14 17:54:34,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:54:34,342 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:54:34,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:54:34,345 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:54:34,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:54:28" (1/3) ... [2021-12-14 17:54:34,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f277447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:54:34, skipping insertion in model container [2021-12-14 17:54:34,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:54:30" (2/3) ... [2021-12-14 17:54:34,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f277447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:54:34, skipping insertion in model container [2021-12-14 17:54:34,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:54:34" (3/3) ... [2021-12-14 17:54:34,346 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 [2021-12-14 17:54:34,349 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:54:34,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:54:34,382 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:54:34,385 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 [2021-12-14 17:54:34,386 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:54:34,412 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) [2021-12-14 17:54:34,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-14 17:54:34,421 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:34,422 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] [2021-12-14 17:54:34,422 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:34,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:34,425 INFO L85 PathProgramCache]: Analyzing trace with hash 553944102, now seen corresponding path program 1 times [2021-12-14 17:54:34,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:34,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61788193] [2021-12-14 17:54:34,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:34,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:54:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:34,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:54:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:54:34,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:34,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:54:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:54:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:34,888 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-14 17:54:34,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:34,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61788193] [2021-12-14 17:54:34,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61788193] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:34,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:34,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:54:34,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184838139] [2021-12-14 17:54:34,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:34,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:54:34,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:34,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:54:34,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:54:34,929 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) [2021-12-14 17:54:40,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:54:40,672 INFO L93 Difference]: Finished difference Result 3299 states and 4906 transitions. [2021-12-14 17:54:40,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:54:40,674 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 [2021-12-14 17:54:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:54:40,691 INFO L225 Difference]: With dead ends: 3299 [2021-12-14 17:54:40,691 INFO L226 Difference]: Without dead ends: 1715 [2021-12-14 17:54:40,704 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 [2021-12-14 17:54:40,706 INFO L933 BasicCegarLoop]: 2105 mSDtfsCounter, 1162 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 1614 mSolverCounterSat, 1002 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1193 SdHoareTripleChecker+Valid, 3637 SdHoareTripleChecker+Invalid, 2616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1002 IncrementalHoareTripleChecker+Valid, 1614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:54:40,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1193 Valid, 3637 Invalid, 2616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1002 Valid, 1614 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2021-12-14 17:54:40,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2021-12-14 17:54:40,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1557. [2021-12-14 17:54:40,787 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) [2021-12-14 17:54:40,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1557 states to 1557 states and 2257 transitions. [2021-12-14 17:54:40,796 INFO L78 Accepts]: Start accepts. Automaton has 1557 states and 2257 transitions. Word has length 113 [2021-12-14 17:54:40,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:54:40,797 INFO L470 AbstractCegarLoop]: Abstraction has 1557 states and 2257 transitions. [2021-12-14 17:54:40,797 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) [2021-12-14 17:54:40,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1557 states and 2257 transitions. [2021-12-14 17:54:40,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-14 17:54:40,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:40,801 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] [2021-12-14 17:54:40,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:54:40,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:40,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash -486862562, now seen corresponding path program 1 times [2021-12-14 17:54:40,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:40,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992333988] [2021-12-14 17:54:40,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:40,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:54:40,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:54:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:40,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:54:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:40,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:54:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:41,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:41,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:54:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:41,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-14 17:54:41,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:41,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992333988] [2021-12-14 17:54:41,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992333988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:41,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:41,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:54:41,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778802902] [2021-12-14 17:54:41,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:41,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:54:41,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:41,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:54:41,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:54:41,038 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) [2021-12-14 17:54:49,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:54:49,950 INFO L93 Difference]: Finished difference Result 4937 states and 7621 transitions. [2021-12-14 17:54:49,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:54:49,950 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 [2021-12-14 17:54:49,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:54:49,969 INFO L225 Difference]: With dead ends: 4937 [2021-12-14 17:54:49,969 INFO L226 Difference]: Without dead ends: 3403 [2021-12-14 17:54:49,976 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 [2021-12-14 17:54:49,980 INFO L933 BasicCegarLoop]: 2632 mSDtfsCounter, 4138 mSDsluCounter, 3708 mSDsCounter, 0 mSdLazyCounter, 3035 mSolverCounterSat, 2163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4342 SdHoareTripleChecker+Valid, 6340 SdHoareTripleChecker+Invalid, 5198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2163 IncrementalHoareTripleChecker+Valid, 3035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-12-14 17:54:49,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4342 Valid, 6340 Invalid, 5198 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2163 Valid, 3035 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2021-12-14 17:54:49,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2021-12-14 17:54:50,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3173. [2021-12-14 17:54:50,079 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) [2021-12-14 17:54:50,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 4761 transitions. [2021-12-14 17:54:50,097 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 4761 transitions. Word has length 113 [2021-12-14 17:54:50,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:54:50,100 INFO L470 AbstractCegarLoop]: Abstraction has 3173 states and 4761 transitions. [2021-12-14 17:54:50,102 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) [2021-12-14 17:54:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 4761 transitions. [2021-12-14 17:54:50,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-14 17:54:50,108 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:54:50,109 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] [2021-12-14 17:54:50,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:54:50,109 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:54:50,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:54:50,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2086592435, now seen corresponding path program 1 times [2021-12-14 17:54:50,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:54:50,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846362730] [2021-12-14 17:54:50,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:54:50,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:54:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:54:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:54:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:54:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:54:50,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:54:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:54:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:54:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:54:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:54:50,384 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-14 17:54:50,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:54:50,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846362730] [2021-12-14 17:54:50,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846362730] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:54:50,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:54:50,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:54:50,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988662027] [2021-12-14 17:54:50,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:54:50,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:54:50,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:54:50,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:54:50,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:54:50,388 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) [2021-12-14 17:55:03,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:03,190 INFO L93 Difference]: Finished difference Result 9905 states and 15904 transitions. [2021-12-14 17:55:03,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:55:03,190 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 [2021-12-14 17:55:03,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:03,248 INFO L225 Difference]: With dead ends: 9905 [2021-12-14 17:55:03,248 INFO L226 Difference]: Without dead ends: 6755 [2021-12-14 17:55:03,281 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 [2021-12-14 17:55:03,281 INFO L933 BasicCegarLoop]: 2670 mSDtfsCounter, 4097 mSDsluCounter, 4532 mSDsCounter, 0 mSdLazyCounter, 4077 mSolverCounterSat, 2136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4308 SdHoareTripleChecker+Valid, 7202 SdHoareTripleChecker+Invalid, 6213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2136 IncrementalHoareTripleChecker+Valid, 4077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:03,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4308 Valid, 7202 Invalid, 6213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2136 Valid, 4077 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2021-12-14 17:55:03,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6755 states. [2021-12-14 17:55:03,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6755 to 6338. [2021-12-14 17:55:03,631 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) [2021-12-14 17:55:03,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6338 states to 6338 states and 9860 transitions. [2021-12-14 17:55:03,673 INFO L78 Accepts]: Start accepts. Automaton has 6338 states and 9860 transitions. Word has length 114 [2021-12-14 17:55:03,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:03,674 INFO L470 AbstractCegarLoop]: Abstraction has 6338 states and 9860 transitions. [2021-12-14 17:55:03,674 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) [2021-12-14 17:55:03,674 INFO L276 IsEmpty]: Start isEmpty. Operand 6338 states and 9860 transitions. [2021-12-14 17:55:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-14 17:55:03,692 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:03,692 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] [2021-12-14 17:55:03,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:55:03,692 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:03,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:03,693 INFO L85 PathProgramCache]: Analyzing trace with hash 259323585, now seen corresponding path program 1 times [2021-12-14 17:55:03,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:03,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7415131] [2021-12-14 17:55:03,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:03,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:03,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:03,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:03,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:55:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:55:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:03,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:03,939 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-14 17:55:03,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:03,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7415131] [2021-12-14 17:55:03,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7415131] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:03,940 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:03,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:55:03,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863907731] [2021-12-14 17:55:03,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:03,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:55:03,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:03,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:55:03,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:55:03,942 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) [2021-12-14 17:55:11,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:11,533 INFO L93 Difference]: Finished difference Result 6753 states and 10628 transitions. [2021-12-14 17:55:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:55:11,534 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 [2021-12-14 17:55:11,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:11,575 INFO L225 Difference]: With dead ends: 6753 [2021-12-14 17:55:11,575 INFO L226 Difference]: Without dead ends: 6750 [2021-12-14 17:55:11,581 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 [2021-12-14 17:55:11,582 INFO L933 BasicCegarLoop]: 2674 mSDtfsCounter, 5211 mSDsluCounter, 2757 mSDsCounter, 0 mSdLazyCounter, 2042 mSolverCounterSat, 3087 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5420 SdHoareTripleChecker+Valid, 5431 SdHoareTripleChecker+Invalid, 5129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3087 IncrementalHoareTripleChecker+Valid, 2042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:11,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5420 Valid, 5431 Invalid, 5129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3087 Valid, 2042 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2021-12-14 17:55:11,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6750 states. [2021-12-14 17:55:11,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6750 to 6339. [2021-12-14 17:55:11,883 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) [2021-12-14 17:55:11,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6339 states to 6339 states and 9861 transitions. [2021-12-14 17:55:11,921 INFO L78 Accepts]: Start accepts. Automaton has 6339 states and 9861 transitions. Word has length 115 [2021-12-14 17:55:11,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:11,922 INFO L470 AbstractCegarLoop]: Abstraction has 6339 states and 9861 transitions. [2021-12-14 17:55:11,922 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) [2021-12-14 17:55:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 6339 states and 9861 transitions. [2021-12-14 17:55:11,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-14 17:55:11,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:11,924 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] [2021-12-14 17:55:11,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 17:55:11,924 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:11,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:11,925 INFO L85 PathProgramCache]: Analyzing trace with hash -551431050, now seen corresponding path program 1 times [2021-12-14 17:55:11,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:11,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401704787] [2021-12-14 17:55:11,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:11,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:12,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:12,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:12,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:12,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:12,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:55:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:55:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:12,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:12,143 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-14 17:55:12,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:12,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401704787] [2021-12-14 17:55:12,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401704787] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:12,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:12,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:55:12,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83562783] [2021-12-14 17:55:12,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:12,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:55:12,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:12,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:55:12,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:55:12,145 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) [2021-12-14 17:55:20,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:20,853 INFO L93 Difference]: Finished difference Result 6749 states and 10624 transitions. [2021-12-14 17:55:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:55:20,854 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 [2021-12-14 17:55:20,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:20,891 INFO L225 Difference]: With dead ends: 6749 [2021-12-14 17:55:20,891 INFO L226 Difference]: Without dead ends: 6746 [2021-12-14 17:55:20,894 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 [2021-12-14 17:55:20,896 INFO L933 BasicCegarLoop]: 2047 mSDtfsCounter, 3001 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 1270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3209 SdHoareTripleChecker+Valid, 4289 SdHoareTripleChecker+Invalid, 3575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1270 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:20,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3209 Valid, 4289 Invalid, 3575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1270 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2021-12-14 17:55:20,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6746 states. [2021-12-14 17:55:21,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6746 to 6338. [2021-12-14 17:55:21,094 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) [2021-12-14 17:55:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6338 states to 6338 states and 9859 transitions. [2021-12-14 17:55:21,122 INFO L78 Accepts]: Start accepts. Automaton has 6338 states and 9859 transitions. Word has length 116 [2021-12-14 17:55:21,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:21,122 INFO L470 AbstractCegarLoop]: Abstraction has 6338 states and 9859 transitions. [2021-12-14 17:55:21,123 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) [2021-12-14 17:55:21,123 INFO L276 IsEmpty]: Start isEmpty. Operand 6338 states and 9859 transitions. [2021-12-14 17:55:21,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-14 17:55:21,125 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:21,125 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] [2021-12-14 17:55:21,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 17:55:21,125 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:21,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:21,126 INFO L85 PathProgramCache]: Analyzing trace with hash 84983908, now seen corresponding path program 1 times [2021-12-14 17:55:21,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:21,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513873580] [2021-12-14 17:55:21,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:21,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:21,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:21,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:55:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:55:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:21,308 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-14 17:55:21,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:21,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513873580] [2021-12-14 17:55:21,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513873580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:21,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:21,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:55:21,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120013990] [2021-12-14 17:55:21,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:21,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:55:21,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:21,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:55:21,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:55:21,312 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) [2021-12-14 17:55:27,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:27,201 INFO L93 Difference]: Finished difference Result 6748 states and 10622 transitions. [2021-12-14 17:55:27,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 17:55:27,205 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 [2021-12-14 17:55:27,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:27,241 INFO L225 Difference]: With dead ends: 6748 [2021-12-14 17:55:27,242 INFO L226 Difference]: Without dead ends: 6715 [2021-12-14 17:55:27,247 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 [2021-12-14 17:55:27,248 INFO L933 BasicCegarLoop]: 2042 mSDtfsCounter, 3000 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 1271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1271 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:27,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3208 Valid, 3592 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1271 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-12-14 17:55:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6715 states. [2021-12-14 17:55:27,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6715 to 6307. [2021-12-14 17:55:27,421 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) [2021-12-14 17:55:27,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6307 states to 6307 states and 9789 transitions. [2021-12-14 17:55:27,443 INFO L78 Accepts]: Start accepts. Automaton has 6307 states and 9789 transitions. Word has length 117 [2021-12-14 17:55:27,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:27,443 INFO L470 AbstractCegarLoop]: Abstraction has 6307 states and 9789 transitions. [2021-12-14 17:55:27,443 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) [2021-12-14 17:55:27,444 INFO L276 IsEmpty]: Start isEmpty. Operand 6307 states and 9789 transitions. [2021-12-14 17:55:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-12-14 17:55:27,453 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:27,453 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] [2021-12-14 17:55:27,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 17:55:27,453 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:27,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:27,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1591193740, now seen corresponding path program 1 times [2021-12-14 17:55:27,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:27,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344481893] [2021-12-14 17:55:27,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:27,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:27,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:27,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:55:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:55:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 17:55:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 17:55:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 17:55:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-12-14 17:55:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 17:55:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 17:55:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 17:55:27,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:27,675 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-12-14 17:55:27,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:27,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344481893] [2021-12-14 17:55:27,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344481893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:27,675 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:27,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 17:55:27,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040757883] [2021-12-14 17:55:27,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:27,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 17:55:27,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:27,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 17:55:27,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:55:27,677 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) [2021-12-14 17:55:36,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:55:36,032 INFO L93 Difference]: Finished difference Result 19703 states and 30995 transitions. [2021-12-14 17:55:36,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 17:55:36,032 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 177 [2021-12-14 17:55:36,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:55:36,112 INFO L225 Difference]: With dead ends: 19703 [2021-12-14 17:55:36,113 INFO L226 Difference]: Without dead ends: 13419 [2021-12-14 17:55:36,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2021-12-14 17:55:36,147 INFO L933 BasicCegarLoop]: 2253 mSDtfsCounter, 6519 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 3702 mSolverCounterSat, 4979 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6835 SdHoareTripleChecker+Valid, 5564 SdHoareTripleChecker+Invalid, 8681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4979 IncrementalHoareTripleChecker+Valid, 3702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-12-14 17:55:36,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6835 Valid, 5564 Invalid, 8681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4979 Valid, 3702 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2021-12-14 17:55:36,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13419 states. [2021-12-14 17:55:36,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13419 to 12364. [2021-12-14 17:55:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12364 states, 8645 states have (on average 1.3754771544245228) internal successors, (11891), 9131 states have internal predecessors, (11891), 2766 states have call successors, (2766), 677 states have call predecessors, (2766), 952 states have return successors, (4654), 2823 states have call predecessors, (4654), 2763 states have call successors, (4654) [2021-12-14 17:55:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12364 states to 12364 states and 19311 transitions. [2021-12-14 17:55:36,634 INFO L78 Accepts]: Start accepts. Automaton has 12364 states and 19311 transitions. Word has length 177 [2021-12-14 17:55:36,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:55:36,635 INFO L470 AbstractCegarLoop]: Abstraction has 12364 states and 19311 transitions. [2021-12-14 17:55:36,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-12-14 17:55:36,638 INFO L276 IsEmpty]: Start isEmpty. Operand 12364 states and 19311 transitions. [2021-12-14 17:55:36,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-12-14 17:55:36,657 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:55:36,658 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:55:36,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 17:55:36,658 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:55:36,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:55:36,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1990904647, now seen corresponding path program 1 times [2021-12-14 17:55:36,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:55:36,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927240447] [2021-12-14 17:55:36,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:55:36,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:55:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:55:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:36,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:55:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 17:55:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:36,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:55:36,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-12-14 17:55:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 17:55:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 17:55:36,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:36,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:55:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 17:55:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 17:55:37,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 17:55:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 17:55:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 17:55:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-14 17:55:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:55:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 17:55:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:55:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2021-12-14 17:55:37,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:55:37,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927240447] [2021-12-14 17:55:37,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927240447] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:55:37,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:55:37,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-14 17:55:37,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526294203] [2021-12-14 17:55:37,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:55:37,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 17:55:37,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:55:37,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 17:55:37,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-14 17:55:37,065 INFO L87 Difference]: Start difference. First operand 12364 states and 19311 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)