./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.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 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:18:43,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:18:43,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:18:43,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:18:43,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:18:43,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:18:43,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:18:43,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:18:43,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:18:43,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:18:43,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:18:43,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:18:43,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:18:43,836 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:18:43,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:18:43,842 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:18:43,843 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:18:43,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:18:43,847 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:18:43,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:18:43,856 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:18:43,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:18:43,858 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:18:43,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:18:43,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:18:43,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:18:43,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:18:43,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:18:43,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:18:43,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:18:43,874 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:18:43,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:18:43,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:18:43,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:18:43,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:18:43,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:18:43,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:18:43,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:18:43,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:18:43,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:18:43,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:18:43,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:18:43,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:18:43,902 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:18:43,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:18:43,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:18:43,903 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:18:43,904 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:18:43,904 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:18:43,905 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:18:43,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:18:43,905 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:18:43,906 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:18:43,906 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:18:43,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:18:43,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:18:43,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:18:43,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:18:43,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:18:43,907 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:18:43,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:18:43,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:18:43,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:18:43,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:18:43,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:18:43,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:18:43,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:18:43,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:18:43,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:18:43,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:18:43,909 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:18:43,909 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:18:43,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:18:43,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 [2022-07-14 00:18:44,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:18:44,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:18:44,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:18:44,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:18:44,228 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:18:44,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-07-14 00:18:44,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c036128c2/ef0aced72d57440896e628eafb09e276/FLAG772bf30bc [2022-07-14 00:18:44,929 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:18:44,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-07-14 00:18:44,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c036128c2/ef0aced72d57440896e628eafb09e276/FLAG772bf30bc [2022-07-14 00:18:45,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c036128c2/ef0aced72d57440896e628eafb09e276 [2022-07-14 00:18:45,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:18:45,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:18:45,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:18:45,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:18:45,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:18:45,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:18:45" (1/1) ... [2022-07-14 00:18:45,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@159fd568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:45, skipping insertion in model container [2022-07-14 00:18:45,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:18:45" (1/1) ... [2022-07-14 00:18:45,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:18:45,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:18:45,924 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-07-14 00:18:46,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:18:46,545 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:18:46,692 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i[190557,190570] [2022-07-14 00:18:46,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:18:46,865 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:18:46,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46 WrapperNode [2022-07-14 00:18:46,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:18:46,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:18:46,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:18:46,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:18:46,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:46,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:47,013 INFO L137 Inliner]: procedures = 175, calls = 709, calls flagged for inlining = 71, calls inlined = 62, statements flattened = 1874 [2022-07-14 00:18:47,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:18:47,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:18:47,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:18:47,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:18:47,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:47,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:47,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:47,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:47,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:47,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:47,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:47,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:18:47,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:18:47,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:18:47,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:18:47,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (1/1) ... [2022-07-14 00:18:47,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:18:47,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:18:47,180 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) [2022-07-14 00:18:47,207 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 [2022-07-14 00:18:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2022-07-14 00:18:47,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2022-07-14 00:18:47,240 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:18:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:18:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2022-07-14 00:18:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2022-07-14 00:18:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:18:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-14 00:18:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-14 00:18:47,241 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-14 00:18:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-14 00:18:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:18:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:18:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:18:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:18:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:18:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-14 00:18:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-14 00:18:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2022-07-14 00:18:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2022-07-14 00:18:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2022-07-14 00:18:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2022-07-14 00:18:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-14 00:18:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-14 00:18:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 00:18:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 00:18:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:18:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:18:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2022-07-14 00:18:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2022-07-14 00:18:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-14 00:18:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-14 00:18:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:18:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:18:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2022-07-14 00:18:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2022-07-14 00:18:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:18:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2022-07-14 00:18:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2022-07-14 00:18:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-14 00:18:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-14 00:18:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:18:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:18:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2022-07-14 00:18:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2022-07-14 00:18:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2022-07-14 00:18:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2022-07-14 00:18:47,247 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2022-07-14 00:18:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2022-07-14 00:18:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2022-07-14 00:18:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2022-07-14 00:18:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-14 00:18:47,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:18:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:18:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:18:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:18:47,249 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2022-07-14 00:18:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2022-07-14 00:18:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:18:47,250 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2022-07-14 00:18:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2022-07-14 00:18:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:18:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:18:47,251 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2022-07-14 00:18:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2022-07-14 00:18:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:18:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2022-07-14 00:18:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2022-07-14 00:18:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2022-07-14 00:18:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2022-07-14 00:18:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:18:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:18:47,252 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:18:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:18:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:18:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-14 00:18:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-14 00:18:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-14 00:18:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-14 00:18:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2022-07-14 00:18:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2022-07-14 00:18:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-14 00:18:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2022-07-14 00:18:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2022-07-14 00:18:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-14 00:18:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-14 00:18:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:18:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:18:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-07-14 00:18:47,255 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-07-14 00:18:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:18:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:18:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2022-07-14 00:18:47,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2022-07-14 00:18:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:18:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:18:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:18:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:18:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2022-07-14 00:18:47,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2022-07-14 00:18:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:18:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:18:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-07-14 00:18:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-07-14 00:18:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-14 00:18:47,258 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-14 00:18:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:18:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2022-07-14 00:18:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2022-07-14 00:18:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-14 00:18:47,259 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-14 00:18:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-14 00:18:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-14 00:18:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:18:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-07-14 00:18:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:18:47,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:18:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:18:47,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:18:47,771 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:18:47,775 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:18:47,921 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:18:50,805 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:18:50,827 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:18:50,828 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-14 00:18:50,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:18:50 BoogieIcfgContainer [2022-07-14 00:18:50,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:18:50,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:18:50,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:18:50,848 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:18:50,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:18:45" (1/3) ... [2022-07-14 00:18:50,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6abffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:18:50, skipping insertion in model container [2022-07-14 00:18:50,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:18:46" (2/3) ... [2022-07-14 00:18:50,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6abffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:18:50, skipping insertion in model container [2022-07-14 00:18:50,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:18:50" (3/3) ... [2022-07-14 00:18:50,852 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--ath--ath6kl--ath6kl_usb.ko-entry_point.cil.out.i [2022-07-14 00:18:50,866 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:18:50,866 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:18:50,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:18:50,970 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@652704a6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6dbf8ca4 [2022-07-14 00:18:50,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:18:50,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 732 states, 523 states have (on average 1.349904397705545) internal successors, (706), 537 states have internal predecessors, (706), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2022-07-14 00:18:51,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-14 00:18:51,015 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:18:51,016 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 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] [2022-07-14 00:18:51,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:18:51,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:18:51,024 INFO L85 PathProgramCache]: Analyzing trace with hash 127676684, now seen corresponding path program 1 times [2022-07-14 00:18:51,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:18:51,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212619136] [2022-07-14 00:18:51,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:18:51,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:18:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:18:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:18:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:18:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:18:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:18:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:18:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:18:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:18:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:18:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:18:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:18:51,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:18:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:18:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:51,814 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-14 00:18:51,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:18:51,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212619136] [2022-07-14 00:18:51,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212619136] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:18:51,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:18:51,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:18:51,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683631612] [2022-07-14 00:18:51,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:18:51,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:18:51,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:18:51,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:18:51,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:18:51,854 INFO L87 Difference]: Start difference. First operand has 732 states, 523 states have (on average 1.349904397705545) internal successors, (706), 537 states have internal predecessors, (706), 158 states have call successors, (158), 50 states have call predecessors, (158), 49 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-14 00:18:53,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:18:54,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:18:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:18:58,047 INFO L93 Difference]: Finished difference Result 2407 states and 3536 transitions. [2022-07-14 00:18:58,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:18:58,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 96 [2022-07-14 00:18:58,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:18:58,091 INFO L225 Difference]: With dead ends: 2407 [2022-07-14 00:18:58,092 INFO L226 Difference]: Without dead ends: 1664 [2022-07-14 00:18:58,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:18:58,109 INFO L413 NwaCegarLoop]: 1055 mSDtfsCounter, 1870 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 1305 mSolverCounterSat, 972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 972 IncrementalHoareTripleChecker+Valid, 1305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:18:58,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 2664 Invalid, 2277 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [972 Valid, 1305 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-14 00:18:58,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-07-14 00:18:58,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1392. [2022-07-14 00:18:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1003 states have (on average 1.3339980059820538) internal successors, (1338), 1019 states have internal predecessors, (1338), 292 states have call successors, (292), 97 states have call predecessors, (292), 96 states have return successors, (291), 291 states have call predecessors, (291), 291 states have call successors, (291) [2022-07-14 00:18:58,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1921 transitions. [2022-07-14 00:18:58,285 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1921 transitions. Word has length 96 [2022-07-14 00:18:58,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:18:58,286 INFO L495 AbstractCegarLoop]: Abstraction has 1392 states and 1921 transitions. [2022-07-14 00:18:58,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-14 00:18:58,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1921 transitions. [2022-07-14 00:18:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-14 00:18:58,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:18:58,292 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 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] [2022-07-14 00:18:58,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:18:58,293 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:18:58,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:18:58,293 INFO L85 PathProgramCache]: Analyzing trace with hash -600740709, now seen corresponding path program 1 times [2022-07-14 00:18:58,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:18:58,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177068977] [2022-07-14 00:18:58,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:18:58,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:18:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:18:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:18:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:18:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:18:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:18:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:18:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:18:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:18:58,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:18:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:18:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:18:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:18:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:18:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:18:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:18:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-14 00:18:58,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:18:58,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177068977] [2022-07-14 00:18:58,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177068977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:18:58,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:18:58,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:18:58,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017544933] [2022-07-14 00:18:58,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:18:58,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:18:58,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:18:58,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:18:58,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:18:58,783 INFO L87 Difference]: Start difference. First operand 1392 states and 1921 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 00:19:03,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:19:03,042 INFO L93 Difference]: Finished difference Result 4647 states and 6600 transitions. [2022-07-14 00:19:03,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:19:03,043 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 107 [2022-07-14 00:19:03,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:19:03,073 INFO L225 Difference]: With dead ends: 4647 [2022-07-14 00:19:03,074 INFO L226 Difference]: Without dead ends: 3279 [2022-07-14 00:19:03,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:19:03,084 INFO L413 NwaCegarLoop]: 1048 mSDtfsCounter, 1905 mSDsluCounter, 3022 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 951 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 4070 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 951 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:19:03,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 4070 Invalid, 3262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [951 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-14 00:19:03,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-07-14 00:19:03,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2781. [2022-07-14 00:19:03,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 2006 states have (on average 1.335493519441675) internal successors, (2679), 2042 states have internal predecessors, (2679), 574 states have call successors, (574), 193 states have call predecessors, (574), 200 states have return successors, (613), 575 states have call predecessors, (613), 573 states have call successors, (613) [2022-07-14 00:19:03,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3866 transitions. [2022-07-14 00:19:03,251 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3866 transitions. Word has length 107 [2022-07-14 00:19:03,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:19:03,252 INFO L495 AbstractCegarLoop]: Abstraction has 2781 states and 3866 transitions. [2022-07-14 00:19:03,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-14 00:19:03,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3866 transitions. [2022-07-14 00:19:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-14 00:19:03,272 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:19:03,272 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:19:03,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:19:03,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:19:03,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:19:03,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1193824511, now seen corresponding path program 1 times [2022-07-14 00:19:03,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:19:03,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400246777] [2022-07-14 00:19:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:03,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:19:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:19:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:19:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:19:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:19:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:19:03,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:19:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:19:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:19:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:19:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:19:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-14 00:19:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:19:03,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-14 00:19:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:03,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:03,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 00:19:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:03,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 00:19:03,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 00:19:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:03,968 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-14 00:19:03,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:19:03,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400246777] [2022-07-14 00:19:03,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400246777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:19:03,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:19:03,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:19:03,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101480958] [2022-07-14 00:19:03,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:19:03,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:19:03,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:19:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:19:03,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:19:03,974 INFO L87 Difference]: Start difference. First operand 2781 states and 3866 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 00:19:07,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:19:07,406 INFO L93 Difference]: Finished difference Result 8209 states and 11541 transitions. [2022-07-14 00:19:07,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:19:07,407 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 239 [2022-07-14 00:19:07,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:19:07,441 INFO L225 Difference]: With dead ends: 8209 [2022-07-14 00:19:07,442 INFO L226 Difference]: Without dead ends: 5458 [2022-07-14 00:19:07,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:19:07,457 INFO L413 NwaCegarLoop]: 1010 mSDtfsCounter, 1943 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 1181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1181 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:19:07,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 2487 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1181 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-14 00:19:07,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5458 states. [2022-07-14 00:19:07,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5458 to 4591. [2022-07-14 00:19:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4591 states, 3288 states have (on average 1.3333333333333333) internal successors, (4384), 3348 states have internal predecessors, (4384), 930 states have call successors, (930), 349 states have call predecessors, (930), 372 states have return successors, (1005), 937 states have call predecessors, (1005), 929 states have call successors, (1005) [2022-07-14 00:19:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 6319 transitions. [2022-07-14 00:19:07,682 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 6319 transitions. Word has length 239 [2022-07-14 00:19:07,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:19:07,684 INFO L495 AbstractCegarLoop]: Abstraction has 4591 states and 6319 transitions. [2022-07-14 00:19:07,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 3 states have internal predecessors, (106), 2 states have call successors, (31), 6 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 00:19:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 6319 transitions. [2022-07-14 00:19:07,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-14 00:19:07,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:19:07,702 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:19:07,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:19:07,702 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:19:07,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:19:07,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1392742117, now seen corresponding path program 1 times [2022-07-14 00:19:07,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:19:07,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554470257] [2022-07-14 00:19:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:07,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:19:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:19:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:19:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:07,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:19:07,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:19:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:19:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:19:07,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:19:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:19:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:19:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:19:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:19:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:08,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:08,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 00:19:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 00:19:08,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:08,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 00:19:08,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:08,292 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-07-14 00:19:08,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:19:08,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554470257] [2022-07-14 00:19:08,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554470257] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:19:08,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:19:08,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:19:08,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118564241] [2022-07-14 00:19:08,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:19:08,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:19:08,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:19:08,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:19:08,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:19:08,294 INFO L87 Difference]: Start difference. First operand 4591 states and 6319 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 00:19:10,307 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 [] [2022-07-14 00:19:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:19:14,397 INFO L93 Difference]: Finished difference Result 12001 states and 16776 transitions. [2022-07-14 00:19:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 00:19:14,398 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 220 [2022-07-14 00:19:14,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:19:14,446 INFO L225 Difference]: With dead ends: 12001 [2022-07-14 00:19:14,447 INFO L226 Difference]: Without dead ends: 7440 [2022-07-14 00:19:14,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:19:14,467 INFO L413 NwaCegarLoop]: 1173 mSDtfsCounter, 953 mSDsluCounter, 3178 mSDsCounter, 0 mSdLazyCounter, 2991 mSolverCounterSat, 354 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 4351 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2991 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:19:14,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 4351 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2991 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-07-14 00:19:14,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7440 states. [2022-07-14 00:19:14,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7440 to 6334. [2022-07-14 00:19:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6334 states, 4581 states have (on average 1.3219820999781706) internal successors, (6056), 4675 states have internal predecessors, (6056), 1233 states have call successors, (1233), 484 states have call predecessors, (1233), 519 states have return successors, (1339), 1244 states have call predecessors, (1339), 1232 states have call successors, (1339) [2022-07-14 00:19:14,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6334 states to 6334 states and 8628 transitions. [2022-07-14 00:19:14,854 INFO L78 Accepts]: Start accepts. Automaton has 6334 states and 8628 transitions. Word has length 220 [2022-07-14 00:19:14,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:19:14,856 INFO L495 AbstractCegarLoop]: Abstraction has 6334 states and 8628 transitions. [2022-07-14 00:19:14,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (31), 6 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-14 00:19:14,857 INFO L276 IsEmpty]: Start isEmpty. Operand 6334 states and 8628 transitions. [2022-07-14 00:19:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-14 00:19:14,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:19:14,877 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:19:14,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:19:14,877 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:19:14,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:19:14,878 INFO L85 PathProgramCache]: Analyzing trace with hash 275000351, now seen corresponding path program 1 times [2022-07-14 00:19:14,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:19:14,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102895769] [2022-07-14 00:19:14,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:14,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:19:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:19:15,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:19:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:19:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:19:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:19:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:19:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:19:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:19:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:19:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:19:15,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:19:15,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:19:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-14 00:19:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 00:19:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 00:19:15,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 00:19:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:19:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:15,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:15,471 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-07-14 00:19:15,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:19:15,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102895769] [2022-07-14 00:19:15,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102895769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:19:15,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:19:15,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:19:15,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248079748] [2022-07-14 00:19:15,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:19:15,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:19:15,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:19:15,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:19:15,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:19:15,474 INFO L87 Difference]: Start difference. First operand 6334 states and 8628 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 00:19:16,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:19:19,044 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:19:21,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:19:21,716 INFO L93 Difference]: Finished difference Result 16777 states and 23178 transitions. [2022-07-14 00:19:21,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:19:21,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 257 [2022-07-14 00:19:21,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:19:21,793 INFO L225 Difference]: With dead ends: 16777 [2022-07-14 00:19:21,793 INFO L226 Difference]: Without dead ends: 10488 [2022-07-14 00:19:21,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:19:21,821 INFO L413 NwaCegarLoop]: 1090 mSDtfsCounter, 2155 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 1186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2258 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1186 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:19:21,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2258 Valid, 2485 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1186 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-14 00:19:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2022-07-14 00:19:22,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 8796. [2022-07-14 00:19:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8796 states, 6363 states have (on average 1.3163602074493164) internal successors, (8376), 6487 states have internal predecessors, (8376), 1675 states have call successors, (1675), 710 states have call predecessors, (1675), 757 states have return successors, (1814), 1690 states have call predecessors, (1814), 1674 states have call successors, (1814) [2022-07-14 00:19:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8796 states to 8796 states and 11865 transitions. [2022-07-14 00:19:22,328 INFO L78 Accepts]: Start accepts. Automaton has 8796 states and 11865 transitions. Word has length 257 [2022-07-14 00:19:22,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:19:22,329 INFO L495 AbstractCegarLoop]: Abstraction has 8796 states and 11865 transitions. [2022-07-14 00:19:22,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 00:19:22,331 INFO L276 IsEmpty]: Start isEmpty. Operand 8796 states and 11865 transitions. [2022-07-14 00:19:22,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-14 00:19:22,353 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:19:22,354 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:19:22,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:19:22,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:19:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:19:22,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1149940619, now seen corresponding path program 1 times [2022-07-14 00:19:22,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:19:22,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867284043] [2022-07-14 00:19:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:22,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:19:22,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:19:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:19:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:22,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:19:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:19:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:19:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:22,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:19:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:19:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:19:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:19:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:19:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:19:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:19:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 00:19:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 00:19:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:19:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:22,769 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-07-14 00:19:22,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:19:22,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867284043] [2022-07-14 00:19:22,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867284043] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:19:22,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:19:22,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:19:22,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674558970] [2022-07-14 00:19:22,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:19:22,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:19:22,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:19:22,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:19:22,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:19:22,772 INFO L87 Difference]: Start difference. First operand 8796 states and 11865 transitions. Second operand has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 00:19:28,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:19:28,359 INFO L93 Difference]: Finished difference Result 26127 states and 35783 transitions. [2022-07-14 00:19:28,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:19:28,360 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 238 [2022-07-14 00:19:28,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:19:28,453 INFO L225 Difference]: With dead ends: 26127 [2022-07-14 00:19:28,454 INFO L226 Difference]: Without dead ends: 17376 [2022-07-14 00:19:28,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:19:28,489 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 1505 mSDsluCounter, 2296 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 776 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1601 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 776 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:19:28,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1601 Valid, 3692 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [776 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-14 00:19:28,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17376 states. [2022-07-14 00:19:29,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17376 to 14374. [2022-07-14 00:19:29,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14374 states, 10507 states have (on average 1.2949462263253069) internal successors, (13606), 10717 states have internal predecessors, (13606), 2565 states have call successors, (2565), 1218 states have call predecessors, (2565), 1301 states have return successors, (2795), 2592 states have call predecessors, (2795), 2564 states have call successors, (2795) [2022-07-14 00:19:29,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14374 states to 14374 states and 18966 transitions. [2022-07-14 00:19:29,131 INFO L78 Accepts]: Start accepts. Automaton has 14374 states and 18966 transitions. Word has length 238 [2022-07-14 00:19:29,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:19:29,132 INFO L495 AbstractCegarLoop]: Abstraction has 14374 states and 18966 transitions. [2022-07-14 00:19:29,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.0) internal successors, (126), 3 states have internal predecessors, (126), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 00:19:29,133 INFO L276 IsEmpty]: Start isEmpty. Operand 14374 states and 18966 transitions. [2022-07-14 00:19:29,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-14 00:19:29,220 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:19:29,221 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:19:29,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 00:19:29,221 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:19:29,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:19:29,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1294557896, now seen corresponding path program 1 times [2022-07-14 00:19:29,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:19:29,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578101403] [2022-07-14 00:19:29,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:29,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:19:29,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:19:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:19:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:19:29,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:19:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:19:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:19:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:19:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:19:29,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:19:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:19:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:19:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:19:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:19:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-14 00:19:29,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:19:29,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578101403] [2022-07-14 00:19:29,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578101403] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:19:29,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:19:29,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:19:29,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310784923] [2022-07-14 00:19:29,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:19:29,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:19:29,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:19:29,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:19:29,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:19:29,629 INFO L87 Difference]: Start difference. First operand 14374 states and 18966 transitions. Second operand has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-14 00:19:31,639 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 [] [2022-07-14 00:19:33,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:19:33,920 INFO L93 Difference]: Finished difference Result 31744 states and 42582 transitions. [2022-07-14 00:19:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:19:33,921 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 237 [2022-07-14 00:19:33,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:19:33,972 INFO L225 Difference]: With dead ends: 31744 [2022-07-14 00:19:33,973 INFO L226 Difference]: Without dead ends: 17415 [2022-07-14 00:19:34,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:19:34,002 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 475 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 404 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 404 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:19:34,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 2760 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [404 Valid, 1509 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-07-14 00:19:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2022-07-14 00:19:34,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 14398. [2022-07-14 00:19:34,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14398 states, 10531 states have (on average 1.2942740480486183) internal successors, (13630), 10741 states have internal predecessors, (13630), 2565 states have call successors, (2565), 1218 states have call predecessors, (2565), 1301 states have return successors, (2795), 2592 states have call predecessors, (2795), 2564 states have call successors, (2795) [2022-07-14 00:19:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14398 states to 14398 states and 18990 transitions. [2022-07-14 00:19:34,476 INFO L78 Accepts]: Start accepts. Automaton has 14398 states and 18990 transitions. Word has length 237 [2022-07-14 00:19:34,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:19:34,477 INFO L495 AbstractCegarLoop]: Abstraction has 14398 states and 18990 transitions. [2022-07-14 00:19:34,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.571428571428573) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-14 00:19:34,477 INFO L276 IsEmpty]: Start isEmpty. Operand 14398 states and 18990 transitions. [2022-07-14 00:19:34,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-14 00:19:34,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:19:34,496 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:19:34,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 00:19:34,496 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:19:34,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:19:34,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1026181340, now seen corresponding path program 1 times [2022-07-14 00:19:34,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:19:34,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73447319] [2022-07-14 00:19:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:34,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:19:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:19:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:19:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:19:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:19:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:19:34,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:19:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:19:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:19:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:19:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:19:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:19:34,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:19:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:19:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:34,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:34,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:34,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:34,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:34,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-14 00:19:34,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:19:34,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73447319] [2022-07-14 00:19:34,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73447319] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:19:34,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856397336] [2022-07-14 00:19:34,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:34,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:19:34,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:19:34,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:19:34,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:19:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:35,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 2087 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-14 00:19:35,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:19:35,854 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 106 proven. 8 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-14 00:19:35,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:19:36,841 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-07-14 00:19:36,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856397336] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 00:19:36,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:19:36,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 9] total 21 [2022-07-14 00:19:36,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175768671] [2022-07-14 00:19:36,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:19:36,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:19:36,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:19:36,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:19:36,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:19:36,843 INFO L87 Difference]: Start difference. First operand 14398 states and 18990 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 7 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (31), 7 states have call predecessors, (31), 6 states have call successors, (31) [2022-07-14 00:19:38,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:19:43,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:19:43,892 INFO L93 Difference]: Finished difference Result 38624 states and 53500 transitions. [2022-07-14 00:19:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:19:43,908 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 7 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (31), 7 states have call predecessors, (31), 6 states have call successors, (31) Word has length 239 [2022-07-14 00:19:43,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:19:44,028 INFO L225 Difference]: With dead ends: 38624 [2022-07-14 00:19:44,028 INFO L226 Difference]: Without dead ends: 31233 [2022-07-14 00:19:44,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 524 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2022-07-14 00:19:44,060 INFO L413 NwaCegarLoop]: 1856 mSDtfsCounter, 3258 mSDsluCounter, 4355 mSDsCounter, 0 mSdLazyCounter, 5014 mSolverCounterSat, 1303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3423 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 6317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1303 IncrementalHoareTripleChecker+Valid, 5014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:19:44,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3423 Valid, 6211 Invalid, 6317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1303 Valid, 5014 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-07-14 00:19:44,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31233 states. [2022-07-14 00:19:45,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31233 to 22242. [2022-07-14 00:19:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22242 states, 16233 states have (on average 1.2936610608020698) internal successors, (21000), 16583 states have internal predecessors, (21000), 3966 states have call successors, (3966), 1825 states have call predecessors, (3966), 2042 states have return successors, (4587), 4113 states have call predecessors, (4587), 3965 states have call successors, (4587) [2022-07-14 00:19:45,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22242 states to 22242 states and 29553 transitions. [2022-07-14 00:19:45,181 INFO L78 Accepts]: Start accepts. Automaton has 22242 states and 29553 transitions. Word has length 239 [2022-07-14 00:19:45,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:19:45,182 INFO L495 AbstractCegarLoop]: Abstraction has 22242 states and 29553 transitions. [2022-07-14 00:19:45,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 9 states have internal predecessors, (125), 7 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (31), 7 states have call predecessors, (31), 6 states have call successors, (31) [2022-07-14 00:19:45,182 INFO L276 IsEmpty]: Start isEmpty. Operand 22242 states and 29553 transitions. [2022-07-14 00:19:45,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-14 00:19:45,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:19:45,207 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:19:45,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:19:45,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:19:45,432 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:19:45,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:19:45,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1190959835, now seen corresponding path program 1 times [2022-07-14 00:19:45,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:19:45,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194545376] [2022-07-14 00:19:45,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:45,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:19:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:19:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:19:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:19:45,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:45,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:19:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:19:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:45,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:19:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:19:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:19:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:19:45,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:19:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:19:45,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:19:45,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:19:45,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:45,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:45,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:19:45,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:45,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:45,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-07-14 00:19:45,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:19:45,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194545376] [2022-07-14 00:19:45,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194545376] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:19:45,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:19:45,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 00:19:45,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584489634] [2022-07-14 00:19:45,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:19:45,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 00:19:45,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:19:45,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 00:19:45,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:19:45,887 INFO L87 Difference]: Start difference. First operand 22242 states and 29553 transitions. Second operand has 8 states, 8 states have (on average 15.875) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:19:47,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:19:50,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:19:50,393 INFO L93 Difference]: Finished difference Result 49080 states and 66666 transitions. [2022-07-14 00:19:50,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:19:50,393 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 241 [2022-07-14 00:19:50,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:19:50,503 INFO L225 Difference]: With dead ends: 49080 [2022-07-14 00:19:50,503 INFO L226 Difference]: Without dead ends: 26883 [2022-07-14 00:19:50,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:19:50,557 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 767 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:19:50,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 3004 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-14 00:19:50,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26883 states. [2022-07-14 00:19:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26883 to 22214. [2022-07-14 00:19:51,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22214 states, 16205 states have (on average 1.2915766738660908) internal successors, (20930), 16555 states have internal predecessors, (20930), 3966 states have call successors, (3966), 1825 states have call predecessors, (3966), 2042 states have return successors, (4587), 4113 states have call predecessors, (4587), 3965 states have call successors, (4587) [2022-07-14 00:19:51,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22214 states to 22214 states and 29483 transitions. [2022-07-14 00:19:51,690 INFO L78 Accepts]: Start accepts. Automaton has 22214 states and 29483 transitions. Word has length 241 [2022-07-14 00:19:51,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:19:51,691 INFO L495 AbstractCegarLoop]: Abstraction has 22214 states and 29483 transitions. [2022-07-14 00:19:51,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.875) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (32), 6 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:19:51,692 INFO L276 IsEmpty]: Start isEmpty. Operand 22214 states and 29483 transitions. [2022-07-14 00:19:51,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-14 00:19:51,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:19:51,728 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:19:51,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 00:19:51,728 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:19:51,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:19:51,729 INFO L85 PathProgramCache]: Analyzing trace with hash 133663156, now seen corresponding path program 1 times [2022-07-14 00:19:51,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:19:51,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864333479] [2022-07-14 00:19:51,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:51,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:19:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:19:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:19:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:19:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:19:51,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:19:51,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:19:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:19:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:19:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:19:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:19:51,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:19:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:19:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:51,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:19:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:19:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:19:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:19:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:52,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:19:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:19:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:19:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:19:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-14 00:19:52,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:19:52,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864333479] [2022-07-14 00:19:52,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864333479] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:19:52,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491967909] [2022-07-14 00:19:52,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:19:52,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:19:52,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:19:52,189 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:19:52,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 00:19:52,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:19:52,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:19:52,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:19:52,852 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-14 00:19:52,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:19:53,158 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-14 00:19:53,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491967909] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:19:53,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:19:53,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2022-07-14 00:19:53,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746865628] [2022-07-14 00:19:53,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:19:53,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 00:19:53,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:19:53,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 00:19:53,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:19:53,161 INFO L87 Difference]: Start difference. First operand 22214 states and 29483 transitions. Second operand has 10 states, 10 states have (on average 14.2) internal successors, (142), 6 states have internal predecessors, (142), 2 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-14 00:19:55,929 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 [] [2022-07-14 00:19:57,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:20:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:00,583 INFO L93 Difference]: Finished difference Result 49456 states and 66962 transitions. [2022-07-14 00:20:00,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:20:00,583 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 6 states have internal predecessors, (142), 2 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) Word has length 243 [2022-07-14 00:20:00,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:00,689 INFO L225 Difference]: With dead ends: 49456 [2022-07-14 00:20:00,689 INFO L226 Difference]: Without dead ends: 27287 [2022-07-14 00:20:00,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:20:00,746 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 696 mSDsluCounter, 3065 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 596 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 2944 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:00,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 4016 Invalid, 2944 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 2347 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-07-14 00:20:00,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27287 states. [2022-07-14 00:20:01,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27287 to 22646. [2022-07-14 00:20:01,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22646 states, 16637 states have (on average 1.2840055298431208) internal successors, (21362), 16987 states have internal predecessors, (21362), 3966 states have call successors, (3966), 1825 states have call predecessors, (3966), 2042 states have return successors, (4587), 4113 states have call predecessors, (4587), 3965 states have call successors, (4587) [2022-07-14 00:20:01,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22646 states to 22646 states and 29915 transitions. [2022-07-14 00:20:01,975 INFO L78 Accepts]: Start accepts. Automaton has 22646 states and 29915 transitions. Word has length 243 [2022-07-14 00:20:01,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:01,976 INFO L495 AbstractCegarLoop]: Abstraction has 22646 states and 29915 transitions. [2022-07-14 00:20:01,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.2) internal successors, (142), 6 states have internal predecessors, (142), 2 states have call successors, (56), 6 states have call predecessors, (56), 2 states have return successors, (31), 2 states have call predecessors, (31), 1 states have call successors, (31) [2022-07-14 00:20:01,976 INFO L276 IsEmpty]: Start isEmpty. Operand 22646 states and 29915 transitions. [2022-07-14 00:20:01,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-14 00:20:01,994 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:01,994 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:02,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:20:02,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 00:20:02,222 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:02,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:02,222 INFO L85 PathProgramCache]: Analyzing trace with hash -132942688, now seen corresponding path program 2 times [2022-07-14 00:20:02,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:20:02,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27500600] [2022-07-14 00:20:02,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:02,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:20:02,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:20:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:20:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:20:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:20:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:20:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:20:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:20:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:20:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:20:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:20:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:20:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:20:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:20:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:20:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:20:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:20:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:20:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:20:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:20:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:02,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:20:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:20:02,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-14 00:20:02,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:20:02,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27500600] [2022-07-14 00:20:02,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27500600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:20:02,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:20:02,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-14 00:20:02,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908353909] [2022-07-14 00:20:02,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:20:02,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-14 00:20:02,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:20:02,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-14 00:20:02,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:20:02,768 INFO L87 Difference]: Start difference. First operand 22646 states and 29915 transitions. Second operand has 10 states, 10 states have (on average 12.8) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 00:20:07,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:07,651 INFO L93 Difference]: Finished difference Result 49958 states and 67478 transitions. [2022-07-14 00:20:07,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 00:20:07,652 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 249 [2022-07-14 00:20:07,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:07,737 INFO L225 Difference]: With dead ends: 49958 [2022-07-14 00:20:07,737 INFO L226 Difference]: Without dead ends: 27357 [2022-07-14 00:20:07,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:20:07,789 INFO L413 NwaCegarLoop]: 956 mSDtfsCounter, 742 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 4282 SdHoareTripleChecker+Invalid, 3140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:07,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 4282 Invalid, 3140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-14 00:20:07,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27357 states. [2022-07-14 00:20:08,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27357 to 22968. [2022-07-14 00:20:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22968 states, 16875 states have (on average 1.28) internal successors, (21600), 17211 states have internal predecessors, (21600), 4008 states have call successors, (4008), 1825 states have call predecessors, (4008), 2084 states have return successors, (4751), 4211 states have call predecessors, (4751), 4007 states have call successors, (4751) [2022-07-14 00:20:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22968 states to 22968 states and 30359 transitions. [2022-07-14 00:20:08,980 INFO L78 Accepts]: Start accepts. Automaton has 22968 states and 30359 transitions. Word has length 249 [2022-07-14 00:20:08,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:08,981 INFO L495 AbstractCegarLoop]: Abstraction has 22968 states and 30359 transitions. [2022-07-14 00:20:08,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.8) internal successors, (128), 5 states have internal predecessors, (128), 3 states have call successors, (32), 6 states have call predecessors, (32), 3 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2022-07-14 00:20:08,981 INFO L276 IsEmpty]: Start isEmpty. Operand 22968 states and 30359 transitions. [2022-07-14 00:20:08,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-14 00:20:08,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:08,998 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:08,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 00:20:08,999 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:08,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1109577762, now seen corresponding path program 1 times [2022-07-14 00:20:08,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:20:08,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583793979] [2022-07-14 00:20:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:09,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:20:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:20:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:20:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:20:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:20:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:20:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:20:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:20:09,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:20:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:20:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:20:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:20:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:20:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:20:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:20:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:20:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:20:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:20:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:20:09,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:09,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:09,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:20:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:10,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:10,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:10,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:20:10,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:10,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:10,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:10,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:20:10,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:10,587 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-14 00:20:10,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:20:10,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583793979] [2022-07-14 00:20:10,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583793979] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:20:10,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616522705] [2022-07-14 00:20:10,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:10,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:20:10,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:20:10,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:20:10,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 00:20:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:11,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 2170 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-14 00:20:11,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:20:11,204 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-07-14 00:20:11,204 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:20:11,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616522705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:20:11,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:20:11,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [23] total 25 [2022-07-14 00:20:11,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965197357] [2022-07-14 00:20:11,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:20:11,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:20:11,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:20:11,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:20:11,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-07-14 00:20:11,207 INFO L87 Difference]: Start difference. First operand 22968 states and 30359 transitions. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:20:12,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:12,294 INFO L93 Difference]: Finished difference Result 34638 states and 45789 transitions. [2022-07-14 00:20:12,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:20:12,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 250 [2022-07-14 00:20:12,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:12,330 INFO L225 Difference]: With dead ends: 34638 [2022-07-14 00:20:12,330 INFO L226 Difference]: Without dead ends: 11703 [2022-07-14 00:20:12,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2022-07-14 00:20:12,377 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 17 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2981 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:12,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2981 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 00:20:12,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11703 states. [2022-07-14 00:20:12,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11703 to 11550. [2022-07-14 00:20:12,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11550 states, 8488 states have (on average 1.2826343072573045) internal successors, (10887), 8656 states have internal predecessors, (10887), 2013 states have call successors, (2013), 919 states have call predecessors, (2013), 1048 states have return successors, (2383), 2114 states have call predecessors, (2383), 2012 states have call successors, (2383) [2022-07-14 00:20:12,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 15283 transitions. [2022-07-14 00:20:12,878 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 15283 transitions. Word has length 250 [2022-07-14 00:20:12,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:12,879 INFO L495 AbstractCegarLoop]: Abstraction has 11550 states and 15283 transitions. [2022-07-14 00:20:12,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:20:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 15283 transitions. [2022-07-14 00:20:12,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-14 00:20:12,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:12,886 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:12,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:20:13,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:20:13,091 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:13,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:13,092 INFO L85 PathProgramCache]: Analyzing trace with hash 784756124, now seen corresponding path program 1 times [2022-07-14 00:20:13,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:20:13,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242725717] [2022-07-14 00:20:13,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:13,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:20:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:20:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:20:13,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:20:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:20:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:20:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:20:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:20:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:20:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:20:13,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:20:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:20:13,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:20:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:20:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:20:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:20:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:20:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:13,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:20:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:20:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:13,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:20:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:14,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:14,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:20:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:14,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:14,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:20:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:14,463 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-14 00:20:14,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:20:14,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242725717] [2022-07-14 00:20:14,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242725717] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:20:14,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476013690] [2022-07-14 00:20:14,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:14,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:20:14,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:20:14,465 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:20:14,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 00:20:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:15,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 2171 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-14 00:20:15,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:20:15,093 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-07-14 00:20:15,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:20:15,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476013690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:20:15,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:20:15,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 23 [2022-07-14 00:20:15,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069108225] [2022-07-14 00:20:15,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:20:15,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:20:15,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:20:15,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:20:15,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2022-07-14 00:20:15,095 INFO L87 Difference]: Start difference. First operand 11550 states and 15283 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:20:15,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:15,423 INFO L93 Difference]: Finished difference Result 23027 states and 30724 transitions. [2022-07-14 00:20:15,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:20:15,423 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 250 [2022-07-14 00:20:15,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:15,454 INFO L225 Difference]: With dead ends: 23027 [2022-07-14 00:20:15,454 INFO L226 Difference]: Without dead ends: 11537 [2022-07-14 00:20:15,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 307 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2022-07-14 00:20:15,478 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 2 mSDsluCounter, 2960 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3953 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:15,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3953 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:20:15,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11537 states. [2022-07-14 00:20:15,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11537 to 11487. [2022-07-14 00:20:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11487 states, 8425 states have (on average 1.2781008902077151) internal successors, (10768), 8586 states have internal predecessors, (10768), 2013 states have call successors, (2013), 919 states have call predecessors, (2013), 1048 states have return successors, (2370), 2121 states have call predecessors, (2370), 2012 states have call successors, (2370) [2022-07-14 00:20:15,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11487 states to 11487 states and 15151 transitions. [2022-07-14 00:20:15,959 INFO L78 Accepts]: Start accepts. Automaton has 11487 states and 15151 transitions. Word has length 250 [2022-07-14 00:20:15,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:15,960 INFO L495 AbstractCegarLoop]: Abstraction has 11487 states and 15151 transitions. [2022-07-14 00:20:15,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-14 00:20:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand 11487 states and 15151 transitions. [2022-07-14 00:20:15,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-14 00:20:15,967 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:15,968 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:15,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-14 00:20:16,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:20:16,169 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:16,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:16,169 INFO L85 PathProgramCache]: Analyzing trace with hash 576081665, now seen corresponding path program 1 times [2022-07-14 00:20:16,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:20:16,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173380250] [2022-07-14 00:20:16,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:16,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:20:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:20:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:20:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:20:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:20:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:20:16,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:20:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:20:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:20:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:20:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:20:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:20:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:20:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:20:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:20:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:20:16,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:20:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:20:16,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:20:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:20:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:20:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:16,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:20:16,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:20:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:16,593 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-07-14 00:20:16,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:20:16,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173380250] [2022-07-14 00:20:16,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173380250] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:20:16,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224891609] [2022-07-14 00:20:16,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:16,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:20:16,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:20:16,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:20:16,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 00:20:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:17,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-14 00:20:17,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:20:17,375 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 88 proven. 8 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-07-14 00:20:17,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:20:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-14 00:20:17,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224891609] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 00:20:17,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:20:17,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 18 [2022-07-14 00:20:17,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736521257] [2022-07-14 00:20:17,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:20:17,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 00:20:17,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:20:17,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 00:20:17,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:20:17,945 INFO L87 Difference]: Start difference. First operand 11487 states and 15151 transitions. Second operand has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-07-14 00:20:19,955 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 [] [2022-07-14 00:20:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:26,375 INFO L93 Difference]: Finished difference Result 32235 states and 45440 transitions. [2022-07-14 00:20:26,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-14 00:20:26,375 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) Word has length 258 [2022-07-14 00:20:26,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:26,576 INFO L225 Difference]: With dead ends: 32235 [2022-07-14 00:20:26,576 INFO L226 Difference]: Without dead ends: 24365 [2022-07-14 00:20:26,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 563 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=685, Unknown=0, NotChecked=0, Total=812 [2022-07-14 00:20:26,596 INFO L413 NwaCegarLoop]: 1920 mSDtfsCounter, 5266 mSDsluCounter, 6006 mSDsCounter, 0 mSdLazyCounter, 4898 mSolverCounterSat, 2328 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5350 SdHoareTripleChecker+Valid, 7926 SdHoareTripleChecker+Invalid, 7227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2328 IncrementalHoareTripleChecker+Valid, 4898 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:26,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5350 Valid, 7926 Invalid, 7227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2328 Valid, 4898 Invalid, 1 Unknown, 0 Unchecked, 7.3s Time] [2022-07-14 00:20:26,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24365 states. [2022-07-14 00:20:27,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24365 to 16557. [2022-07-14 00:20:27,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16557 states, 12054 states have (on average 1.271445163431226) internal successors, (15326), 12362 states have internal predecessors, (15326), 3008 states have call successors, (3008), 1224 states have call predecessors, (3008), 1494 states have return successors, (3720), 3208 states have call predecessors, (3720), 3007 states have call successors, (3720) [2022-07-14 00:20:27,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16557 states to 16557 states and 22054 transitions. [2022-07-14 00:20:27,392 INFO L78 Accepts]: Start accepts. Automaton has 16557 states and 22054 transitions. Word has length 258 [2022-07-14 00:20:27,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:27,393 INFO L495 AbstractCegarLoop]: Abstraction has 16557 states and 22054 transitions. [2022-07-14 00:20:27,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.777777777777779) internal successors, (133), 9 states have internal predecessors, (133), 7 states have call successors, (33), 4 states have call predecessors, (33), 4 states have return successors, (32), 5 states have call predecessors, (32), 6 states have call successors, (32) [2022-07-14 00:20:27,393 INFO L276 IsEmpty]: Start isEmpty. Operand 16557 states and 22054 transitions. [2022-07-14 00:20:27,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-07-14 00:20:27,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:27,401 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:27,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:20:27,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-14 00:20:27,606 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:27,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:27,607 INFO L85 PathProgramCache]: Analyzing trace with hash 491601537, now seen corresponding path program 1 times [2022-07-14 00:20:27,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:20:27,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622609923] [2022-07-14 00:20:27,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:27,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:20:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:20:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:20:27,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:20:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:20:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:20:27,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:20:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:20:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:20:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:20:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:20:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:20:27,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:20:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:20:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:20:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:20:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:20:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:20:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:20:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 00:20:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:27,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:28,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:28,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:20:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:28,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:20:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:28,061 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-14 00:20:28,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:20:28,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622609923] [2022-07-14 00:20:28,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622609923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:20:28,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:20:28,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-14 00:20:28,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782973489] [2022-07-14 00:20:28,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:20:28,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 00:20:28,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:20:28,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 00:20:28,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:20:28,063 INFO L87 Difference]: Start difference. First operand 16557 states and 22054 transitions. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 8 states have internal predecessors, (127), 5 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-14 00:20:30,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:20:32,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:20:34,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:20:39,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:20:42,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:42,989 INFO L93 Difference]: Finished difference Result 38610 states and 51902 transitions. [2022-07-14 00:20:42,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 00:20:42,990 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 8 states have internal predecessors, (127), 5 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) Word has length 247 [2022-07-14 00:20:42,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:43,070 INFO L225 Difference]: With dead ends: 38610 [2022-07-14 00:20:43,070 INFO L226 Difference]: Without dead ends: 22113 [2022-07-14 00:20:43,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2022-07-14 00:20:43,114 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 2090 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 4859 mSolverCounterSat, 1283 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 4152 SdHoareTripleChecker+Invalid, 6143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1283 IncrementalHoareTripleChecker+Valid, 4859 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:43,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 4152 Invalid, 6143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1283 Valid, 4859 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2022-07-14 00:20:43,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22113 states. [2022-07-14 00:20:43,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22113 to 18006. [2022-07-14 00:20:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18006 states, 12999 states have (on average 1.260327717516732) internal successors, (16383), 13349 states have internal predecessors, (16383), 3281 states have call successors, (3281), 1406 states have call predecessors, (3281), 1725 states have return successors, (4091), 3495 states have call predecessors, (4091), 3280 states have call successors, (4091) [2022-07-14 00:20:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18006 states to 18006 states and 23755 transitions. [2022-07-14 00:20:43,946 INFO L78 Accepts]: Start accepts. Automaton has 18006 states and 23755 transitions. Word has length 247 [2022-07-14 00:20:43,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:43,946 INFO L495 AbstractCegarLoop]: Abstraction has 18006 states and 23755 transitions. [2022-07-14 00:20:43,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 8 states have internal predecessors, (127), 5 states have call successors, (32), 6 states have call predecessors, (32), 4 states have return successors, (31), 6 states have call predecessors, (31), 4 states have call successors, (31) [2022-07-14 00:20:43,947 INFO L276 IsEmpty]: Start isEmpty. Operand 18006 states and 23755 transitions. [2022-07-14 00:20:43,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-14 00:20:43,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:43,956 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:43,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-14 00:20:43,956 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:43,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:43,956 INFO L85 PathProgramCache]: Analyzing trace with hash -484872815, now seen corresponding path program 1 times [2022-07-14 00:20:43,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:20:43,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287043776] [2022-07-14 00:20:43,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:43,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:20:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:20:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:20:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:20:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:20:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:20:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:20:44,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:20:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:20:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:20:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:20:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:20:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:20:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:20:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-14 00:20:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:20:44,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:20:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:20:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:20:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:20:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:20:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:20:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:20:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:44,359 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-07-14 00:20:44,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:20:44,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287043776] [2022-07-14 00:20:44,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287043776] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:20:44,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677069972] [2022-07-14 00:20:44,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:44,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:20:44,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:20:44,364 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:20:44,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 00:20:45,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:45,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:20:45,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:20:45,060 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-14 00:20:45,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:20:45,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677069972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:20:45,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:20:45,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2022-07-14 00:20:45,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903809158] [2022-07-14 00:20:45,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:20:45,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:20:45,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:20:45,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:20:45,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:20:45,062 INFO L87 Difference]: Start difference. First operand 18006 states and 23755 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 00:20:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:45,820 INFO L93 Difference]: Finished difference Result 36061 states and 47633 transitions. [2022-07-14 00:20:45,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:20:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 257 [2022-07-14 00:20:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:45,880 INFO L225 Difference]: With dead ends: 36061 [2022-07-14 00:20:45,880 INFO L226 Difference]: Without dead ends: 18035 [2022-07-14 00:20:45,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 315 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:20:45,921 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 2 mSDsluCounter, 1980 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2973 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:45,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2973 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:20:45,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18035 states. [2022-07-14 00:20:46,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18035 to 18035. [2022-07-14 00:20:46,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18035 states, 13028 states have (on average 1.2597482345716917) internal successors, (16412), 13378 states have internal predecessors, (16412), 3281 states have call successors, (3281), 1406 states have call predecessors, (3281), 1725 states have return successors, (4091), 3495 states have call predecessors, (4091), 3280 states have call successors, (4091) [2022-07-14 00:20:46,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18035 states to 18035 states and 23784 transitions. [2022-07-14 00:20:46,673 INFO L78 Accepts]: Start accepts. Automaton has 18035 states and 23784 transitions. Word has length 257 [2022-07-14 00:20:46,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:46,674 INFO L495 AbstractCegarLoop]: Abstraction has 18035 states and 23784 transitions. [2022-07-14 00:20:46,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 00:20:46,674 INFO L276 IsEmpty]: Start isEmpty. Operand 18035 states and 23784 transitions. [2022-07-14 00:20:46,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-14 00:20:46,682 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:46,682 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:46,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:20:46,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-14 00:20:46,883 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:46,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:46,883 INFO L85 PathProgramCache]: Analyzing trace with hash 822016599, now seen corresponding path program 1 times [2022-07-14 00:20:46,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:20:46,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085747849] [2022-07-14 00:20:46,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:46,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:20:47,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:20:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:20:47,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:20:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:20:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:20:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:20:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:20:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:20:47,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:20:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:20:47,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:20:47,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:20:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-14 00:20:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:20:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-14 00:20:47,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 00:20:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:47,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:47,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:20:47,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:20:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:20:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:20:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:20:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:20:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:47,342 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-14 00:20:47,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:20:47,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085747849] [2022-07-14 00:20:47,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085747849] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:20:47,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654485968] [2022-07-14 00:20:47,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:47,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:20:47,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:20:47,344 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:20:47,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 00:20:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:48,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 2243 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 00:20:48,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:20:48,106 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 139 proven. 1 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-07-14 00:20:48,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:20:48,364 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-14 00:20:48,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [654485968] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:20:48,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:20:48,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2022-07-14 00:20:48,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812034253] [2022-07-14 00:20:48,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:20:48,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 00:20:48,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:20:48,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 00:20:48,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:20:48,366 INFO L87 Difference]: Start difference. First operand 18035 states and 23784 transitions. Second operand has 14 states, 14 states have (on average 16.357142857142858) internal successors, (229), 10 states have internal predecessors, (229), 2 states have call successors, (77), 6 states have call predecessors, (77), 5 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-07-14 00:20:49,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:20:56,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:20:57,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:20:57,895 INFO L93 Difference]: Finished difference Result 38848 states and 51933 transitions. [2022-07-14 00:20:57,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 00:20:57,896 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 16.357142857142858) internal successors, (229), 10 states have internal predecessors, (229), 2 states have call successors, (77), 6 states have call predecessors, (77), 5 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 259 [2022-07-14 00:20:57,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:20:57,976 INFO L225 Difference]: With dead ends: 38848 [2022-07-14 00:20:57,976 INFO L226 Difference]: Without dead ends: 20791 [2022-07-14 00:20:58,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 572 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:20:58,025 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 460 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 416 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 3426 SdHoareTripleChecker+Invalid, 2408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:20:58,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 3426 Invalid, 2408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 1991 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-07-14 00:20:58,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20791 states. [2022-07-14 00:20:58,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20791 to 18066. [2022-07-14 00:20:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18066 states, 13059 states have (on average 1.259131633356306) internal successors, (16443), 13409 states have internal predecessors, (16443), 3281 states have call successors, (3281), 1406 states have call predecessors, (3281), 1725 states have return successors, (4091), 3495 states have call predecessors, (4091), 3280 states have call successors, (4091) [2022-07-14 00:20:58,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18066 states to 18066 states and 23815 transitions. [2022-07-14 00:20:58,959 INFO L78 Accepts]: Start accepts. Automaton has 18066 states and 23815 transitions. Word has length 259 [2022-07-14 00:20:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:20:58,960 INFO L495 AbstractCegarLoop]: Abstraction has 18066 states and 23815 transitions. [2022-07-14 00:20:58,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 16.357142857142858) internal successors, (229), 10 states have internal predecessors, (229), 2 states have call successors, (77), 6 states have call predecessors, (77), 5 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-07-14 00:20:58,960 INFO L276 IsEmpty]: Start isEmpty. Operand 18066 states and 23815 transitions. [2022-07-14 00:20:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-07-14 00:20:58,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:20:58,969 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 8, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:20:58,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:20:59,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:20:59,184 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:20:59,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:20:59,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1297530769, now seen corresponding path program 2 times [2022-07-14 00:20:59,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:20:59,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159059612] [2022-07-14 00:20:59,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:20:59,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:20:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:20:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:20:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:20:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:20:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:20:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:20:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:20:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:20:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:20:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:20:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:20:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:20:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:20:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:20:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:20:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-14 00:20:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:20:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:20:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:20:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:00,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:00,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:00,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:21:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:00,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:21:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:00,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:21:00,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:00,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:00,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:21:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:00,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:21:00,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:01,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:01,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:02,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:21:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:21:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:02,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:21:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-07-14 00:21:02,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:21:02,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159059612] [2022-07-14 00:21:02,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159059612] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:21:02,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202253827] [2022-07-14 00:21:02,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:21:02,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:21:02,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:21:02,400 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:21:02,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 00:21:03,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:21:03,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:21:03,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 56 conjunts are in the unsatisfiable core [2022-07-14 00:21:03,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:21:03,830 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-07-14 00:21:03,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:21:03,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202253827] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:21:03,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:21:03,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [28] total 38 [2022-07-14 00:21:03,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867061216] [2022-07-14 00:21:03,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:21:03,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-14 00:21:03,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:21:03,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-14 00:21:03,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1310, Unknown=0, NotChecked=0, Total=1406 [2022-07-14 00:21:03,832 INFO L87 Difference]: Start difference. First operand 18066 states and 23815 transitions. Second operand has 14 states, 13 states have (on average 11.076923076923077) internal successors, (144), 11 states have internal predecessors, (144), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 00:21:05,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:21:05,044 INFO L93 Difference]: Finished difference Result 38017 states and 51396 transitions. [2022-07-14 00:21:05,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 00:21:05,045 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.076923076923077) internal successors, (144), 11 states have internal predecessors, (144), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) Word has length 265 [2022-07-14 00:21:05,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:21:05,124 INFO L225 Difference]: With dead ends: 38017 [2022-07-14 00:21:05,124 INFO L226 Difference]: Without dead ends: 20015 [2022-07-14 00:21:05,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=133, Invalid=1759, Unknown=0, NotChecked=0, Total=1892 [2022-07-14 00:21:05,181 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 27 mSDsluCounter, 11323 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 12360 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:21:05,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 12360 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 00:21:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20015 states. [2022-07-14 00:21:06,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20015 to 18388. [2022-07-14 00:21:06,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18388 states, 13346 states have (on average 1.2509366102202908) internal successors, (16695), 13647 states have internal predecessors, (16695), 3281 states have call successors, (3281), 1406 states have call predecessors, (3281), 1760 states have return successors, (4175), 3579 states have call predecessors, (4175), 3280 states have call successors, (4175) [2022-07-14 00:21:06,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18388 states to 18388 states and 24151 transitions. [2022-07-14 00:21:06,092 INFO L78 Accepts]: Start accepts. Automaton has 18388 states and 24151 transitions. Word has length 265 [2022-07-14 00:21:06,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:21:06,092 INFO L495 AbstractCegarLoop]: Abstraction has 18388 states and 24151 transitions. [2022-07-14 00:21:06,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.076923076923077) internal successors, (144), 11 states have internal predecessors, (144), 3 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (32), 5 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 00:21:06,093 INFO L276 IsEmpty]: Start isEmpty. Operand 18388 states and 24151 transitions. [2022-07-14 00:21:06,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-14 00:21:06,101 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:21:06,102 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 8, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:21:06,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:21:06,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-14 00:21:06,302 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:21:06,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:21:06,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1093437602, now seen corresponding path program 1 times [2022-07-14 00:21:06,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:21:06,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125330695] [2022-07-14 00:21:06,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:21:06,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:21:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:21:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:21:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:21:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:21:06,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:21:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:21:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:21:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:21:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:21:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:21:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-14 00:21:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:21:06,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:06,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:21:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:21:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:21:07,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-14 00:21:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:21:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:21:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-14 00:21:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:21:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:21:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-14 00:21:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:07,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:21:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:08,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:08,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:08,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:08,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:08,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-14 00:21:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:21:08,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:08,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:21:08,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:08,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-14 00:21:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:08,667 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-07-14 00:21:08,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:21:08,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125330695] [2022-07-14 00:21:08,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125330695] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:21:08,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979770493] [2022-07-14 00:21:08,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:21:08,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:21:08,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:21:08,668 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:21:08,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 00:21:09,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:21:09,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 2381 conjuncts, 141 conjunts are in the unsatisfiable core [2022-07-14 00:21:09,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:21:10,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-14 00:21:10,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-07-14 00:21:10,815 INFO L356 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-07-14 00:21:10,816 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2022-07-14 00:21:10,832 INFO L356 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-07-14 00:21:10,832 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 24 [2022-07-14 00:21:15,801 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-07-14 00:21:15,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 3 [2022-07-14 00:21:15,810 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-07-14 00:21:15,810 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 7 [2022-07-14 00:21:16,739 INFO L356 Elim1Store]: treesize reduction 3, result has 78.6 percent of original size [2022-07-14 00:21:16,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2022-07-14 00:21:16,880 INFO L356 Elim1Store]: treesize reduction 27, result has 40.0 percent of original size [2022-07-14 00:21:16,880 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 46 [2022-07-14 00:21:16,892 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-07-14 00:21:16,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 3 [2022-07-14 00:21:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 118 proven. 10 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-07-14 00:21:17,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:21:18,043 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 238 [2022-07-14 00:21:18,049 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 378 [2022-07-14 00:21:19,224 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 238 [2022-07-14 00:21:19,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 378 [2022-07-14 00:21:20,744 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-14 00:21:20,744 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2022-07-14 00:21:20,767 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-14 00:21:20,767 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 30 [2022-07-14 00:21:35,329 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 242 treesize of output 238 [2022-07-14 00:21:35,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 394 treesize of output 378 [2022-07-14 00:22:04,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 538 treesize of output 530 [2022-07-14 00:22:04,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1754 treesize of output 1690