./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2f349249e9e86997fa8ff3fec7fb7aa332cbfd0034f841eea19465e389dd90de --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:37:06,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:37:06,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:37:06,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:37:06,877 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:37:06,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:37:06,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:37:06,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:37:06,888 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:37:06,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:37:06,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:37:06,893 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:37:06,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:37:06,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:37:06,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:37:06,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:37:06,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:37:06,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:37:06,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:37:06,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:37:06,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:37:06,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:37:06,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:37:06,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:37:06,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:37:06,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:37:06,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:37:06,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:37:06,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:37:06,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:37:06,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:37:06,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:37:06,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:37:06,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:37:06,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:37:06,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:37:06,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:37:06,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:37:06,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:37:06,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:37:06,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:37:06,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:37:06,957 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:37:06,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:37:06,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:37:06,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:37:06,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:37:06,959 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:37:06,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:37:06,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:37:06,960 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:37:06,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:37:06,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:37:06,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:37:06,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:37:06,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:37:06,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:37:06,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:37:06,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:37:06,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:37:06,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:37:06,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:37:06,962 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:37:06,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:37:06,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:37:06,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:37:06,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:37:06,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:37:06,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:37:06,964 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:37:06,964 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:37:06,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:37:06,964 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f349249e9e86997fa8ff3fec7fb7aa332cbfd0034f841eea19465e389dd90de [2021-12-28 04:37:07,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:37:07,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:37:07,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:37:07,239 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:37:07,239 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:37:07,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2021-12-28 04:37:07,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79af6f3ae/84a8e8798001429b91d3f23a1d824a0d/FLAGc41ed4843 [2021-12-28 04:37:07,838 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:37:07,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2021-12-28 04:37:07,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79af6f3ae/84a8e8798001429b91d3f23a1d824a0d/FLAGc41ed4843 [2021-12-28 04:37:08,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79af6f3ae/84a8e8798001429b91d3f23a1d824a0d [2021-12-28 04:37:08,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:37:08,043 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:37:08,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:37:08,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:37:08,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:37:08,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:37:08" (1/1) ... [2021-12-28 04:37:08,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8eb1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:08, skipping insertion in model container [2021-12-28 04:37:08,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:37:08" (1/1) ... [2021-12-28 04:37:08,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:37:08,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:37:09,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281346,281359] [2021-12-28 04:37:09,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:37:09,864 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:37:10,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281346,281359] [2021-12-28 04:37:10,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:37:10,311 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:37:10,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10 WrapperNode [2021-12-28 04:37:10,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:37:10,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:37:10,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:37:10,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:37:10,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:10,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:10,610 INFO L137 Inliner]: procedures = 272, calls = 2959, calls flagged for inlining = 111, calls inlined = 108, statements flattened = 6853 [2021-12-28 04:37:10,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:37:10,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:37:10,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:37:10,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:37:10,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:10,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:10,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:10,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:10,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:10,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:10,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:10,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:37:10,998 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:37:10,998 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:37:10,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:37:10,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (1/1) ... [2021-12-28 04:37:11,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:37:11,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:37:11,023 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) [2021-12-28 04:37:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_reset [2021-12-28 04:37:11,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_reset [2021-12-28 04:37:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2021-12-28 04:37:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2021-12-28 04:37:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_status_buf [2021-12-28 04:37:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_status_buf [2021-12-28 04:37:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-28 04:37:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-28 04:37:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-28 04:37:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-28 04:37:11,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:37:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:37:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:37:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:37:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure scan_periodic [2021-12-28 04:37:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_periodic [2021-12-28 04:37:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:37:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:37:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-12-28 04:37:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-12-28 04:37:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:37:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:37:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:37:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:37:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_create [2021-12-28 04:37:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_create [2021-12-28 04:37:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_readl [2021-12-28 04:37:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_readl [2021-12-28 04:37:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_run [2021-12-28 04:37:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_run [2021-12-28 04:37:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:37:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:37:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_next_shadow [2021-12-28 04:37:11,070 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_next_shadow [2021-12-28 04:37:11,071 INFO L130 BoogieDeclarations]: Found specification of procedure qh_put [2021-12-28 04:37:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_put [2021-12-28 04:37:11,056 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 [2021-12-28 04:37:11,072 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_irq [2021-12-28 04:37:11,073 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_irq [2021-12-28 04:37:11,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:37:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:37:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure scan_async [2021-12-28 04:37:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_async [2021-12-28 04:37:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-28 04:37:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-28 04:37:11,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:37:11,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:37:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_halt [2021-12-28 04:37:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_halt [2021-12-28 04:37:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_endpoint_disable [2021-12-28 04:37:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_endpoint_disable [2021-12-28 04:37:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2021-12-28 04:37:11,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2021-12-28 04:37:11,075 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:37:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:37:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-28 04:37:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-28 04:37:11,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2021-12-28 04:37:11,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2021-12-28 04:37:11,077 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qtd_free [2021-12-28 04:37:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qtd_free [2021-12-28 04:37:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:37:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 04:37:11,078 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 04:37:11,078 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_list_free [2021-12-28 04:37:11,079 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_list_free [2021-12-28 04:37:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:37:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_fill [2021-12-28 04:37:11,079 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_fill [2021-12-28 04:37:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-28 04:37:11,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:37:11,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:37:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 04:37:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 04:37:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_writel [2021-12-28 04:37:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_writel [2021-12-28 04:37:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:37:11,080 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:37:11,080 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_shutdown [2021-12-28 04:37:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_shutdown [2021-12-28 04:37:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2021-12-28 04:37:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2021-12-28 04:37:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_alloc [2021-12-28 04:37:11,081 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_alloc [2021-12-28 04:37:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:37:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:37:11,081 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_command_buf [2021-12-28 04:37:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_command_buf [2021-12-28 04:37:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_enqueue [2021-12-28 04:37:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_enqueue [2021-12-28 04:37:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2021-12-28 04:37:11,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2021-12-28 04:37:11,082 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_usecs [2021-12-28 04:37:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_usecs [2021-12-28 04:37:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure intr_deschedule [2021-12-28 04:37:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_deschedule [2021-12-28 04:37:11,083 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_buf_alloc [2021-12-28 04:37:11,083 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_buf_alloc [2021-12-28 04:37:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-28 04:37:11,084 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-28 04:37:11,084 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_control [2021-12-28 04:37:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_control [2021-12-28 04:37:11,085 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-12-28 04:37:11,085 INFO L130 BoogieDeclarations]: Found specification of procedure qh_completions [2021-12-28 04:37:11,085 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_completions [2021-12-28 04:37:11,086 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:37:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:37:11,086 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2021-12-28 04:37:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2021-12-28 04:37:11,086 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-28 04:37:11,086 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-28 04:37:11,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:37:11,087 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_probe [2021-12-28 04:37:11,087 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_probe [2021-12-28 04:37:11,087 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 04:37:11,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 04:37:11,087 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action [2021-12-28 04:37:11,087 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action [2021-12-28 04:37:11,088 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-28 04:37:11,088 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-28 04:37:11,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:37:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_get_frame [2021-12-28 04:37:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_get_frame [2021-12-28 04:37:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_stop [2021-12-28 04:37:11,090 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_stop [2021-12-28 04:37:11,090 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2021-12-28 04:37:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2021-12-28 04:37:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:37:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-12-28 04:37:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-12-28 04:37:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 04:37:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 04:37:11,091 INFO L130 BoogieDeclarations]: Found specification of procedure qh_schedule [2021-12-28 04:37:11,091 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_schedule [2021-12-28 04:37:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure check_intr_schedule [2021-12-28 04:37:11,092 INFO L138 BoogieDeclarations]: Found implementation of procedure check_intr_schedule [2021-12-28 04:37:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure __oxu_urb_enqueue [2021-12-28 04:37:11,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __oxu_urb_enqueue [2021-12-28 04:37:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_remove [2021-12-28 04:37:11,092 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_remove [2021-12-28 04:37:11,092 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2021-12-28 04:37:11,092 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2021-12-28 04:37:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:37:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:37:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-28 04:37:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-28 04:37:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:37:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-28 04:37:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-28 04:37:11,093 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-28 04:37:11,093 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-28 04:37:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:37:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:37:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_work [2021-12-28 04:37:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_work [2021-12-28 04:37:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure qh_unlink_periodic [2021-12-28 04:37:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_unlink_periodic [2021-12-28 04:37:11,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:37:11,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:37:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-12-28 04:37:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-12-28 04:37:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:37:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-28 04:37:11,095 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-28 04:37:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-12-28 04:37:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_async [2021-12-28 04:37:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_async [2021-12-28 04:37:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_mem_cleanup [2021-12-28 04:37:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_mem_cleanup [2021-12-28 04:37:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_to_hcd [2021-12-28 04:37:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_to_hcd [2021-12-28 04:37:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:37:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:37:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-28 04:37:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-28 04:37:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:37:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qh_alloc [2021-12-28 04:37:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qh_alloc [2021-12-28 04:37:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_suspend [2021-12-28 04:37:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_suspend [2021-12-28 04:37:11,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_calc_bus_time [2021-12-28 04:37:11,097 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_calc_bus_time [2021-12-28 04:37:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-28 04:37:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-28 04:37:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 04:37:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 04:37:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_async [2021-12-28 04:37:11,098 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_async [2021-12-28 04:37:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:37:11,098 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_status_data [2021-12-28 04:37:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_status_data [2021-12-28 04:37:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_shutdown [2021-12-28 04:37:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_shutdown [2021-12-28 04:37:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure qh_urb_transaction [2021-12-28 04:37:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_urb_transaction [2021-12-28 04:37:11,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:37:11,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 04:37:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure qh_get [2021-12-28 04:37:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_get [2021-12-28 04:37:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-28 04:37:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-28 04:37:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_quiesce [2021-12-28 04:37:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_quiesce [2021-12-28 04:37:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action_done [2021-12-28 04:37:11,100 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action_done [2021-12-28 04:37:11,100 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 04:37:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 04:37:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 04:37:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 04:37:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-12-28 04:37:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-12-28 04:37:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_hcd [2021-12-28 04:37:11,101 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_hcd [2021-12-28 04:37:11,101 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_free [2021-12-28 04:37:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_free [2021-12-28 04:37:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_done [2021-12-28 04:37:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_done [2021-12-28 04:37:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2021-12-28 04:37:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2021-12-28 04:37:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure handshake [2021-12-28 04:37:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure handshake [2021-12-28 04:37:11,102 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-12-28 04:37:11,102 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-12-28 04:37:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure qh_refresh [2021-12-28 04:37:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_refresh [2021-12-28 04:37:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 04:37:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 04:37:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_async [2021-12-28 04:37:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_async [2021-12-28 04:37:11,103 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-28 04:37:11,103 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-28 04:37:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_resume [2021-12-28 04:37:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_resume [2021-12-28 04:37:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_dequeue [2021-12-28 04:37:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_dequeue [2021-12-28 04:37:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:37:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:37:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-28 04:37:11,104 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-28 04:37:11,104 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-28 04:37:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-28 04:37:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-28 04:37:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-28 04:37:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure qh_append_tds [2021-12-28 04:37:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_append_tds [2021-12-28 04:37:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_remove [2021-12-28 04:37:11,105 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_remove [2021-12-28 04:37:11,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:37:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_alloc [2021-12-28 04:37:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_alloc [2021-12-28 04:37:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_oxu [2021-12-28 04:37:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_oxu [2021-12-28 04:37:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_reset [2021-12-28 04:37:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_reset [2021-12-28 04:37:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:37:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:37:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 04:37:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 04:37:11,720 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:37:11,722 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:37:11,991 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:37:17,464 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:37:17,487 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:37:17,490 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:37:17,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:37:17 BoogieIcfgContainer [2021-12-28 04:37:17,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:37:17,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:37:17,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:37:17,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:37:17,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:37:08" (1/3) ... [2021-12-28 04:37:17,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5820c4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:37:17, skipping insertion in model container [2021-12-28 04:37:17,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:37:10" (2/3) ... [2021-12-28 04:37:17,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5820c4c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:37:17, skipping insertion in model container [2021-12-28 04:37:17,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:37:17" (3/3) ... [2021-12-28 04:37:17,500 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2021-12-28 04:37:17,503 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:37:17,503 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:37:17,555 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:37:17,560 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 [2021-12-28 04:37:17,560 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:37:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand has 2722 states, 1890 states have (on average 1.37989417989418) internal successors, (2608), 1961 states have internal predecessors, (2608), 712 states have call successors, (712), 119 states have call predecessors, (712), 118 states have return successors, (706), 690 states have call predecessors, (706), 706 states have call successors, (706) [2021-12-28 04:37:17,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-12-28 04:37:17,644 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:37:17,645 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:37:17,645 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:37:17,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:37:17,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1729058157, now seen corresponding path program 1 times [2021-12-28 04:37:17,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:37:17,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590950253] [2021-12-28 04:37:17,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:37:17,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:37:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:37:18,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:18,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:37:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:37:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:37:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:18,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:37:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:18,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:37:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:37:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 04:37:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 04:37:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 04:37:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:37:18,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:37:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-28 04:37:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 04:37:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 04:37:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:37:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-28 04:37:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 04:37:18,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-28 04:37:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-28 04:37:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-12-28 04:37:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-28 04:37:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-28 04:37:18,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-12-28 04:37:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-28 04:37:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-28 04:37:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-12-28 04:37:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:18,371 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2021-12-28 04:37:18,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:37:18,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590950253] [2021-12-28 04:37:18,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590950253] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:37:18,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:37:18,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:37:18,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526785867] [2021-12-28 04:37:18,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:37:18,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:37:18,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:37:18,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:37:18,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:37:18,399 INFO L87 Difference]: Start difference. First operand has 2722 states, 1890 states have (on average 1.37989417989418) internal successors, (2608), 1961 states have internal predecessors, (2608), 712 states have call successors, (712), 119 states have call predecessors, (712), 118 states have return successors, (706), 690 states have call predecessors, (706), 706 states have call successors, (706) Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (33), 5 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-28 04:37:24,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:37:26,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:37:30,111 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:37:31,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:37:31,243 INFO L93 Difference]: Finished difference Result 5779 states and 8690 transitions. [2021-12-28 04:37:31,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:37:31,245 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (33), 5 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 305 [2021-12-28 04:37:31,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:37:31,272 INFO L225 Difference]: With dead ends: 5779 [2021-12-28 04:37:31,274 INFO L226 Difference]: Without dead ends: 3034 [2021-12-28 04:37:31,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:37:31,296 INFO L933 BasicCegarLoop]: 3681 mSDtfsCounter, 1730 mSDsluCounter, 4628 mSDsCounter, 0 mSdLazyCounter, 3430 mSolverCounterSat, 1844 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 8309 SdHoareTripleChecker+Invalid, 5276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1844 IncrementalHoareTripleChecker+Valid, 3430 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:37:31,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1808 Valid, 8309 Invalid, 5276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1844 Valid, 3430 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2021-12-28 04:37:31,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3034 states. [2021-12-28 04:37:31,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3034 to 2694. [2021-12-28 04:37:31,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2694 states, 1872 states have (on average 1.374465811965812) internal successors, (2573), 1935 states have internal predecessors, (2573), 704 states have call successors, (704), 118 states have call predecessors, (704), 117 states have return successors, (703), 687 states have call predecessors, (703), 703 states have call successors, (703) [2021-12-28 04:37:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2694 states to 2694 states and 3980 transitions. [2021-12-28 04:37:31,546 INFO L78 Accepts]: Start accepts. Automaton has 2694 states and 3980 transitions. Word has length 305 [2021-12-28 04:37:31,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:37:31,547 INFO L470 AbstractCegarLoop]: Abstraction has 2694 states and 3980 transitions. [2021-12-28 04:37:31,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (33), 5 states have call predecessors, (33), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-28 04:37:31,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2694 states and 3980 transitions. [2021-12-28 04:37:31,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-28 04:37:31,568 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:37:31,569 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:37:31,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:37:31,569 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:37:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:37:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1283526759, now seen corresponding path program 1 times [2021-12-28 04:37:31,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:37:31,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278026265] [2021-12-28 04:37:31,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:37:31,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:37:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:37:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:37:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:37:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:37:31,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:37:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:37:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:37:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 04:37:31,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 04:37:31,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 04:37:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:37:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:37:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-28 04:37:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 04:37:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 04:37:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:37:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-28 04:37:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 04:37:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-28 04:37:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2021-12-28 04:37:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-28 04:37:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-28 04:37:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-28 04:37:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-28 04:37:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-28 04:37:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-28 04:37:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-28 04:37:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2021-12-28 04:37:32,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:37:32,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278026265] [2021-12-28 04:37:32,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278026265] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:37:32,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:37:32,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:37:32,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841784085] [2021-12-28 04:37:32,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:37:32,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:37:32,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:37:32,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:37:32,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:37:32,036 INFO L87 Difference]: Start difference. First operand 2694 states and 3980 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-28 04:37:43,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:37:46,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:37:46,583 INFO L93 Difference]: Finished difference Result 8525 states and 12770 transitions. [2021-12-28 04:37:46,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:37:46,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 306 [2021-12-28 04:37:46,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:37:46,613 INFO L225 Difference]: With dead ends: 8525 [2021-12-28 04:37:46,613 INFO L226 Difference]: Without dead ends: 5876 [2021-12-28 04:37:46,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:37:46,627 INFO L933 BasicCegarLoop]: 4142 mSDtfsCounter, 6673 mSDsluCounter, 7349 mSDsCounter, 0 mSdLazyCounter, 6591 mSolverCounterSat, 4142 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7171 SdHoareTripleChecker+Valid, 11491 SdHoareTripleChecker+Invalid, 10734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4142 IncrementalHoareTripleChecker+Valid, 6591 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2021-12-28 04:37:46,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7171 Valid, 11491 Invalid, 10734 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4142 Valid, 6591 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2021-12-28 04:37:46,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5876 states. [2021-12-28 04:37:46,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5876 to 5214. [2021-12-28 04:37:46,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5214 states, 3630 states have (on average 1.3738292011019284) internal successors, (4987), 3757 states have internal predecessors, (4987), 1349 states have call successors, (1349), 234 states have call predecessors, (1349), 234 states have return successors, (1354), 1316 states have call predecessors, (1354), 1348 states have call successors, (1354) [2021-12-28 04:37:46,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 5214 states and 7690 transitions. [2021-12-28 04:37:46,890 INFO L78 Accepts]: Start accepts. Automaton has 5214 states and 7690 transitions. Word has length 306 [2021-12-28 04:37:46,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:37:46,891 INFO L470 AbstractCegarLoop]: Abstraction has 5214 states and 7690 transitions. [2021-12-28 04:37:46,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-28 04:37:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 5214 states and 7690 transitions. [2021-12-28 04:37:46,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-12-28 04:37:46,901 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:37:46,901 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:37:46,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:37:46,901 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:37:46,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:37:46,902 INFO L85 PathProgramCache]: Analyzing trace with hash 115381437, now seen corresponding path program 1 times [2021-12-28 04:37:46,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:37:46,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343012305] [2021-12-28 04:37:46,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:37:46,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:37:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:37:47,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:37:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:37:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:37:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:37:47,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:37:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:37:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:37:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 04:37:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 04:37:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 04:37:47,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:37:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:37:47,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-28 04:37:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 04:37:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 04:37:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:37:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-28 04:37:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 04:37:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:37:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-28 04:37:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-28 04:37:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-28 04:37:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2021-12-28 04:37:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-28 04:37:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2021-12-28 04:37:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-28 04:37:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-12-28 04:37:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-28 04:37:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:37:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2021-12-28 04:37:47,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:37:47,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343012305] [2021-12-28 04:37:47,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343012305] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:37:47,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:37:47,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:37:47,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155372950] [2021-12-28 04:37:47,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:37:47,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:37:47,343 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:37:47,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:37:47,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:37:47,344 INFO L87 Difference]: Start difference. First operand 5214 states and 7690 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-28 04:37:56,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:37:58,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:37:59,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:37:59,687 INFO L93 Difference]: Finished difference Result 15545 states and 23161 transitions. [2021-12-28 04:37:59,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:37:59,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 303 [2021-12-28 04:37:59,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:37:59,747 INFO L225 Difference]: With dead ends: 15545 [2021-12-28 04:37:59,748 INFO L226 Difference]: Without dead ends: 10376 [2021-12-28 04:37:59,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:37:59,774 INFO L933 BasicCegarLoop]: 5400 mSDtfsCounter, 7868 mSDsluCounter, 5232 mSDsCounter, 0 mSdLazyCounter, 4050 mSolverCounterSat, 5064 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8365 SdHoareTripleChecker+Valid, 10632 SdHoareTripleChecker+Invalid, 9116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5064 IncrementalHoareTripleChecker+Valid, 4050 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:37:59,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8365 Valid, 10632 Invalid, 9116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5064 Valid, 4050 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2021-12-28 04:37:59,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10376 states. [2021-12-28 04:38:00,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10376 to 9204. [2021-12-28 04:38:00,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9204 states, 6430 states have (on average 1.3734059097978226) internal successors, (8831), 6663 states have internal predecessors, (8831), 2336 states have call successors, (2336), 437 states have call predecessors, (2336), 437 states have return successors, (2344), 2270 states have call predecessors, (2344), 2335 states have call successors, (2344) [2021-12-28 04:38:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9204 states to 9204 states and 13511 transitions. [2021-12-28 04:38:00,193 INFO L78 Accepts]: Start accepts. Automaton has 9204 states and 13511 transitions. Word has length 303 [2021-12-28 04:38:00,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:38:00,195 INFO L470 AbstractCegarLoop]: Abstraction has 9204 states and 13511 transitions. [2021-12-28 04:38:00,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (33), 5 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-28 04:38:00,196 INFO L276 IsEmpty]: Start isEmpty. Operand 9204 states and 13511 transitions. [2021-12-28 04:38:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2021-12-28 04:38:00,225 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:38:00,225 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:38:00,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:38:00,226 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:38:00,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:38:00,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1532887860, now seen corresponding path program 1 times [2021-12-28 04:38:00,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:38:00,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334759783] [2021-12-28 04:38:00,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:38:00,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:38:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:38:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:38:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:38:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:38:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:38:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:38:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:38:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 04:38:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 04:38:00,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 04:38:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:38:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:38:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-28 04:38:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 04:38:00,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 04:38:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:38:00,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-28 04:38:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 04:38:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-28 04:38:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-28 04:38:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-28 04:38:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-28 04:38:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-28 04:38:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-28 04:38:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-28 04:38:00,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-12-28 04:38:00,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-12-28 04:38:00,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-28 04:38:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2021-12-28 04:38:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-12-28 04:38:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2021-12-28 04:38:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2021-12-28 04:38:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1378 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2021-12-28 04:38:00,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:38:00,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334759783] [2021-12-28 04:38:00,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334759783] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:38:00,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:38:00,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:38:00,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726331529] [2021-12-28 04:38:00,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:38:00,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:38:00,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:38:00,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:38:00,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:38:00,771 INFO L87 Difference]: Start difference. First operand 9204 states and 13511 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-12-28 04:38:08,710 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 04:38:09,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:38:09,712 INFO L93 Difference]: Finished difference Result 19671 states and 29207 transitions. [2021-12-28 04:38:09,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 04:38:09,713 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 399 [2021-12-28 04:38:09,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:38:09,767 INFO L225 Difference]: With dead ends: 19671 [2021-12-28 04:38:09,768 INFO L226 Difference]: Without dead ends: 10512 [2021-12-28 04:38:09,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:38:09,808 INFO L933 BasicCegarLoop]: 3675 mSDtfsCounter, 2104 mSDsluCounter, 5883 mSDsCounter, 0 mSdLazyCounter, 3925 mSolverCounterSat, 1938 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 9558 SdHoareTripleChecker+Invalid, 5864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1938 IncrementalHoareTripleChecker+Valid, 3925 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-12-28 04:38:09,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2189 Valid, 9558 Invalid, 5864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1938 Valid, 3925 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-12-28 04:38:09,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10512 states. [2021-12-28 04:38:10,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10512 to 9213. [2021-12-28 04:38:10,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9213 states, 6439 states have (on average 1.372883988196925) internal successors, (8840), 6672 states have internal predecessors, (8840), 2336 states have call successors, (2336), 437 states have call predecessors, (2336), 437 states have return successors, (2344), 2270 states have call predecessors, (2344), 2335 states have call successors, (2344) [2021-12-28 04:38:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9213 states to 9213 states and 13520 transitions. [2021-12-28 04:38:10,133 INFO L78 Accepts]: Start accepts. Automaton has 9213 states and 13520 transitions. Word has length 399 [2021-12-28 04:38:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:38:10,136 INFO L470 AbstractCegarLoop]: Abstraction has 9213 states and 13520 transitions. [2021-12-28 04:38:10,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2021-12-28 04:38:10,137 INFO L276 IsEmpty]: Start isEmpty. Operand 9213 states and 13520 transitions. [2021-12-28 04:38:10,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-12-28 04:38:10,167 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:38:10,168 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:38:10,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:38:10,168 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:38:10,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:38:10,168 INFO L85 PathProgramCache]: Analyzing trace with hash 94884345, now seen corresponding path program 1 times [2021-12-28 04:38:10,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:38:10,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247257951] [2021-12-28 04:38:10,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:38:10,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:38:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:38:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:38:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:38:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:38:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 04:38:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-28 04:38:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-28 04:38:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 04:38:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-28 04:38:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 04:38:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:38:10,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-12-28 04:38:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-28 04:38:10,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 04:38:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 04:38:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-28 04:38:10,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-28 04:38:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 04:38:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-28 04:38:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-28 04:38:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-28 04:38:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-28 04:38:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-28 04:38:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:38:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:38:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-28 04:38:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-28 04:38:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-28 04:38:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-28 04:38:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-28 04:38:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-28 04:38:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2021-12-28 04:38:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-12-28 04:38:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 383 [2021-12-28 04:38:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:38:10,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1378 trivial. 0 not checked. [2021-12-28 04:38:10,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:38:10,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247257951] [2021-12-28 04:38:10,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247257951] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:38:10,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:38:10,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:38:10,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746598447] [2021-12-28 04:38:10,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:38:10,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:38:10,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:38:10,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:38:10,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:38:10,837 INFO L87 Difference]: Start difference. First operand 9213 states and 13520 transitions. Second operand has 6 states, 6 states have (on average 17.5) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35)