./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 eb692b52 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-?-eb692b5 [2022-07-19 23:40:03,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:40:03,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:40:03,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:40:03,970 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:40:03,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:40:03,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:40:03,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:40:03,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:40:03,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:40:03,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:40:03,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:40:03,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:40:03,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:40:03,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:40:03,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:40:03,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:40:03,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:40:03,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:40:03,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:40:03,994 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:40:03,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:40:03,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:40:03,996 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:40:03,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:40:03,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:40:04,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:40:04,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:40:04,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:40:04,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:40:04,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:40:04,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:40:04,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:40:04,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:40:04,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:40:04,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:40:04,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:40:04,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:40:04,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:40:04,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:40:04,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:40:04,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:40:04,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:40:04,031 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:40:04,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:40:04,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:40:04,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:40:04,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:40:04,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:40:04,033 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:40:04,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:40:04,033 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:40:04,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:40:04,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:40:04,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:40:04,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:40:04,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:40:04,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:40:04,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:40:04,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:40:04,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:40:04,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:40:04,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:40:04,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:40:04,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:40:04,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:40:04,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:40:04,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:40:04,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:40:04,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:40:04,038 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:40:04,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:40:04,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:40:04,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037f6e8e4bd200c248573cc05d02b8c7bc97a7f8cca3135a2970ec46958bec59 [2022-07-19 23:40:04,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:40:04,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:40:04,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:40:04,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:40:04,244 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:40:04,245 INFO L432 ainManager$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 [2022-07-19 23:40:04,298 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97fc609a9/4f3e0eee25bf46ae91273677c838cfc2/FLAG71db22963 [2022-07-19 23:40:04,897 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:40:04,898 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 [2022-07-19 23:40:04,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97fc609a9/4f3e0eee25bf46ae91273677c838cfc2/FLAG71db22963 [2022-07-19 23:40:05,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97fc609a9/4f3e0eee25bf46ae91273677c838cfc2 [2022-07-19 23:40:05,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:40:05,322 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:40:05,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:40:05,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:40:05,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:40:05,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:40:05" (1/1) ... [2022-07-19 23:40:05,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eeac769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:05, skipping insertion in model container [2022-07-19 23:40:05,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:40:05" (1/1) ... [2022-07-19 23:40:05,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:40:05,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:40:06,039 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] [2022-07-19 23:40:06,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:40:06,504 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:40:06,681 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] [2022-07-19 23:40:06,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:40:06,858 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:40:06,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06 WrapperNode [2022-07-19 23:40:06,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:40:06,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:40:06,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:40:06,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:40:06,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:06,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:07,009 INFO L137 Inliner]: procedures = 175, calls = 709, calls flagged for inlining = 71, calls inlined = 62, statements flattened = 1874 [2022-07-19 23:40:07,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:40:07,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:40:07,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:40:07,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:40:07,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:07,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:07,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:07,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:07,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:07,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:07,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:07,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:40:07,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:40:07,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:40:07,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:40:07,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (1/1) ... [2022-07-19 23:40:07,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:40:07,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:40:07,261 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) [2022-07-19 23:40:07,327 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 [2022-07-19 23:40:07,343 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_scatter [2022-07-19 23:40:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_scatter [2022-07-19 23:40:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-19 23:40:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-19 23:40:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_out [2022-07-19 23:40:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_out [2022-07-19 23:40:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-19 23:40:07,344 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-19 23:40:07,344 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-19 23:40:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-07-19 23:40:07,345 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-07-19 23:40:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-19 23:40:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-19 23:40:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-19 23:40:07,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-19 23:40:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 23:40:07,345 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-07-19 23:40:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-07-19 23:40:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_diag_write32 [2022-07-19 23:40:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_diag_write32 [2022-07-19 23:40:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_destroy [2022-07-19 23:40:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_destroy [2022-07-19 23:40:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-07-19 23:40:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-07-19 23:40:07,346 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-19 23:40:07,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-19 23:40:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:40:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:40:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_default_pipe [2022-07-19 23:40:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_default_pipe [2022-07-19 23:40:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-19 23:40:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-19 23:40:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-19 23:40:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-19 23:40:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_off [2022-07-19 23:40:07,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_off [2022-07-19 23:40:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 23:40:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_bmi_read [2022-07-19 23:40:07,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_bmi_read [2022-07-19 23:40:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-19 23:40:07,349 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-19 23:40:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:40:07,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:40:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_stop [2022-07-19 23:40:07,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_stop [2022-07-19 23:40:07,349 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_get_free_queue_number [2022-07-19 23:40:07,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_get_free_queue_number [2022-07-19 23:40:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_free_urb_to_pipe [2022-07-19 23:40:07,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_free_urb_to_pipe [2022-07-19 23:40:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_flush_all [2022-07-19 23:40:07,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_flush_all [2022-07-19 23:40:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2022-07-19 23:40:07,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-19 23:40:07,350 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-19 23:40:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-19 23:40:07,351 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-19 23:40:07,351 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_ctrl_msg_exchange [2022-07-19 23:40:07,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_ctrl_msg_exchange [2022-07-19 23:40:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:40:07,352 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_cleanup_recv_urb [2022-07-19 23:40:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_cleanup_recv_urb [2022-07-19 23:40:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-19 23:40:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-19 23:40:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_submit_ctrl_in [2022-07-19 23:40:07,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_submit_ctrl_in [2022-07-19 23:40:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:40:07,353 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_power_on [2022-07-19 23:40:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_power_on [2022-07-19 23:40:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_priv [2022-07-19 23:40:07,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_priv [2022-07-19 23:40:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:40:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:40:07,354 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-19 23:40:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-19 23:40:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:40:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-19 23:40:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-19 23:40:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-07-19 23:40:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-07-19 23:40:07,355 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_alloc_urb_from_pipe [2022-07-19 23:40:07,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_alloc_urb_from_pipe [2022-07-19 23:40:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-19 23:40:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_remove [2022-07-19 23:40:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_remove [2022-07-19 23:40:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-19 23:40:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-19 23:40:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-19 23:40:07,356 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-19 23:40:07,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-07-19 23:40:07,357 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-07-19 23:40:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:40:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:40:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_post_recv_transfers [2022-07-19 23:40:07,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_post_recv_transfers [2022-07-19 23:40:07,357 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-19 23:40:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-19 23:40:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-19 23:40:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-19 23:40:07,358 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_map_service_pipe [2022-07-19 23:40:07,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_map_service_pipe [2022-07-19 23:40:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-19 23:40:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-19 23:40:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-07-19 23:40:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-07-19 23:40:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-07-19 23:40:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-07-19 23:40:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 23:40:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure ath6kl_usb_send [2022-07-19 23:40:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ath6kl_usb_send [2022-07-19 23:40:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-19 23:40:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-19 23:40:07,360 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-07-19 23:40:07,360 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-07-19 23:40:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-19 23:40:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2022-07-19 23:40:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-19 23:40:07,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-19 23:40:07,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:40:07,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:40:07,792 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:40:07,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:40:07,899 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-19 23:40:10,010 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:40:10,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:40:10,020 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-19 23:40:10,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:40:10 BoogieIcfgContainer [2022-07-19 23:40:10,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:40:10,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:40:10,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:40:10,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:40:10,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:40:05" (1/3) ... [2022-07-19 23:40:10,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c05e97f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:40:10, skipping insertion in model container [2022-07-19 23:40:10,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:40:06" (2/3) ... [2022-07-19 23:40:10,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c05e97f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:40:10, skipping insertion in model container [2022-07-19 23:40:10,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:40:10" (3/3) ... [2022-07-19 23:40:10,028 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 [2022-07-19 23:40:10,038 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:40:10,038 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:40:10,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:40:10,085 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@32968f20, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@332f4a41 [2022-07-19 23:40:10,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:40:10,090 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) [2022-07-19 23:40:10,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-19 23:40:10,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:10,101 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] [2022-07-19 23:40:10,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:10,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:10,105 INFO L85 PathProgramCache]: Analyzing trace with hash 127676684, now seen corresponding path program 1 times [2022-07-19 23:40:10,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:40:10,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080573988] [2022-07-19 23:40:10,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:10,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:40:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:40:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:40:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:40:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:40:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:40:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:40:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:40:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:40:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:40:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:40:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:10,611 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-19 23:40:10,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:40:10,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080573988] [2022-07-19 23:40:10,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080573988] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:40:10,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:40:10,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 23:40:10,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20637631] [2022-07-19 23:40:10,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:10,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:40:10,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:40:10,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:40:10,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:40:10,642 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) [2022-07-19 23:40:11,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:13,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:16,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:40:16,693 INFO L93 Difference]: Finished difference Result 2407 states and 3536 transitions. [2022-07-19 23:40:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 23:40:16,695 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 [2022-07-19 23:40:16,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:40:16,723 INFO L225 Difference]: With dead ends: 2407 [2022-07-19 23:40:16,726 INFO L226 Difference]: Without dead ends: 1664 [2022-07-19 23:40:16,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:40:16,739 INFO L413 NwaCegarLoop]: 1055 mSDtfsCounter, 1869 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 1309 mSolverCounterSat, 968 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1965 SdHoareTripleChecker+Valid, 2668 SdHoareTripleChecker+Invalid, 2277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 968 IncrementalHoareTripleChecker+Valid, 1309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-19 23:40:16,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1965 Valid, 2668 Invalid, 2277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [968 Valid, 1309 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-19 23:40:16,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2022-07-19 23:40:16,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1392. [2022-07-19 23:40:16,852 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) [2022-07-19 23:40:16,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1921 transitions. [2022-07-19 23:40:16,859 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1921 transitions. Word has length 96 [2022-07-19 23:40:16,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:40:16,860 INFO L495 AbstractCegarLoop]: Abstraction has 1392 states and 1921 transitions. [2022-07-19 23:40:16,860 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) [2022-07-19 23:40:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1921 transitions. [2022-07-19 23:40:16,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-19 23:40:16,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:16,866 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] [2022-07-19 23:40:16,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 23:40:16,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:16,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:16,867 INFO L85 PathProgramCache]: Analyzing trace with hash -600740709, now seen corresponding path program 1 times [2022-07-19 23:40:16,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:40:16,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931811942] [2022-07-19 23:40:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:16,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:40:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:40:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:40:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:40:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:40:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:40:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:40:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:40:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:40:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:40:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:40:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:40:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:17,220 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-19 23:40:17,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:40:17,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931811942] [2022-07-19 23:40:17,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931811942] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:40:17,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:40:17,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 23:40:17,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348515790] [2022-07-19 23:40:17,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:17,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 23:40:17,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:40:17,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 23:40:17,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:40:17,231 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) [2022-07-19 23:40:19,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:22,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:40:22,153 INFO L93 Difference]: Finished difference Result 4647 states and 6600 transitions. [2022-07-19 23:40:22,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:40:22,154 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 [2022-07-19 23:40:22,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:40:22,169 INFO L225 Difference]: With dead ends: 4647 [2022-07-19 23:40:22,169 INFO L226 Difference]: Without dead ends: 3279 [2022-07-19 23:40:22,173 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 [2022-07-19 23:40:22,174 INFO L413 NwaCegarLoop]: 1047 mSDtfsCounter, 1905 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 2307 mSolverCounterSat, 953 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2008 SdHoareTripleChecker+Valid, 4065 SdHoareTripleChecker+Invalid, 3260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 953 IncrementalHoareTripleChecker+Valid, 2307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:40:22,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2008 Valid, 4065 Invalid, 3260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [953 Valid, 2307 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-19 23:40:22,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3279 states. [2022-07-19 23:40:22,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3279 to 2781. [2022-07-19 23:40:22,268 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) [2022-07-19 23:40:22,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3866 transitions. [2022-07-19 23:40:22,299 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3866 transitions. Word has length 107 [2022-07-19 23:40:22,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:40:22,300 INFO L495 AbstractCegarLoop]: Abstraction has 2781 states and 3866 transitions. [2022-07-19 23:40:22,300 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) [2022-07-19 23:40:22,300 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3866 transitions. [2022-07-19 23:40:22,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-19 23:40:22,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:22,310 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] [2022-07-19 23:40:22,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 23:40:22,311 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:22,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:22,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1193824511, now seen corresponding path program 1 times [2022-07-19 23:40:22,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:40:22,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786000138] [2022-07-19 23:40:22,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:22,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:40:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:40:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:40:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:40:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:40:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:40:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:40:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:40:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:40:22,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:40:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:40:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-19 23:40:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 23:40:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-19 23:40:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 23:40:22,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:40:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:40:22,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-19 23:40:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:22,766 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2022-07-19 23:40:22,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:40:22,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786000138] [2022-07-19 23:40:22,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786000138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:40:22,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:40:22,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 23:40:22,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473913047] [2022-07-19 23:40:22,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:22,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 23:40:22,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:40:22,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 23:40:22,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:40:22,770 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) [2022-07-19 23:40:24,781 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 [] [2022-07-19 23:40:27,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:40:27,544 INFO L93 Difference]: Finished difference Result 8209 states and 11541 transitions. [2022-07-19 23:40:27,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:40:27,545 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 [2022-07-19 23:40:27,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:40:27,575 INFO L225 Difference]: With dead ends: 8209 [2022-07-19 23:40:27,575 INFO L226 Difference]: Without dead ends: 5458 [2022-07-19 23:40:27,587 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 [2022-07-19 23:40:27,588 INFO L413 NwaCegarLoop]: 1011 mSDtfsCounter, 1943 mSDsluCounter, 1477 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 1181 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2029 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1181 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-19 23:40:27,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2029 Valid, 2488 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1181 Valid, 1439 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-07-19 23:40:27,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5458 states. [2022-07-19 23:40:27,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5458 to 4591. [2022-07-19 23:40:27,747 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) [2022-07-19 23:40:27,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4591 states to 4591 states and 6319 transitions. [2022-07-19 23:40:27,765 INFO L78 Accepts]: Start accepts. Automaton has 4591 states and 6319 transitions. Word has length 239 [2022-07-19 23:40:27,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:40:27,765 INFO L495 AbstractCegarLoop]: Abstraction has 4591 states and 6319 transitions. [2022-07-19 23:40:27,766 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) [2022-07-19 23:40:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 4591 states and 6319 transitions. [2022-07-19 23:40:27,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-07-19 23:40:27,776 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:27,776 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] [2022-07-19 23:40:27,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 23:40:27,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:27,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:27,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1392742117, now seen corresponding path program 1 times [2022-07-19 23:40:27,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:40:27,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593340507] [2022-07-19 23:40:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:27,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:40:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:27,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:40:27,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:27,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:40:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:27,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:27,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:40:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:27,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:27,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:40:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:27,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:40:27,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:40:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:40:28,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:40:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:40:28,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:40:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-19 23:40:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 23:40:28,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 23:40:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:40:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-19 23:40:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:28,231 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-07-19 23:40:28,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:40:28,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593340507] [2022-07-19 23:40:28,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593340507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:40:28,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:40:28,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 23:40:28,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382618086] [2022-07-19 23:40:28,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:28,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 23:40:28,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:40:28,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 23:40:28,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:40:28,234 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) [2022-07-19 23:40:31,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:34,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:40:34,752 INFO L93 Difference]: Finished difference Result 12001 states and 16776 transitions. [2022-07-19 23:40:34,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 23:40:34,753 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 [2022-07-19 23:40:34,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:40:34,786 INFO L225 Difference]: With dead ends: 12001 [2022-07-19 23:40:34,786 INFO L226 Difference]: Without dead ends: 7440 [2022-07-19 23:40:34,798 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 [2022-07-19 23:40:34,799 INFO L413 NwaCegarLoop]: 1170 mSDtfsCounter, 953 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 2984 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 4342 SdHoareTripleChecker+Invalid, 3338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:40:34,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 4342 Invalid, 3338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2984 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-07-19 23:40:34,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7440 states. [2022-07-19 23:40:34,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7440 to 6334. [2022-07-19 23:40:34,979 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) [2022-07-19 23:40:34,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6334 states to 6334 states and 8628 transitions. [2022-07-19 23:40:34,996 INFO L78 Accepts]: Start accepts. Automaton has 6334 states and 8628 transitions. Word has length 220 [2022-07-19 23:40:34,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:40:34,997 INFO L495 AbstractCegarLoop]: Abstraction has 6334 states and 8628 transitions. [2022-07-19 23:40:34,997 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) [2022-07-19 23:40:34,998 INFO L276 IsEmpty]: Start isEmpty. Operand 6334 states and 8628 transitions. [2022-07-19 23:40:35,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-19 23:40:35,010 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:35,010 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] [2022-07-19 23:40:35,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 23:40:35,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:35,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:35,011 INFO L85 PathProgramCache]: Analyzing trace with hash 275000351, now seen corresponding path program 1 times [2022-07-19 23:40:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:40:35,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630207] [2022-07-19 23:40:35,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:35,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:40:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:40:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:40:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:40:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:40:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:40:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:40:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:40:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:40:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:40:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:40:35,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:40:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:40:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 23:40:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 23:40:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-19 23:40:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:35,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 23:40:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 23:40:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:35,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:40:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:35,451 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2022-07-19 23:40:35,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:40:35,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630207] [2022-07-19 23:40:35,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:40:35,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:40:35,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 23:40:35,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935426082] [2022-07-19 23:40:35,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:35,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 23:40:35,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:40:35,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 23:40:35,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:40:35,453 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) [2022-07-19 23:40:38,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:40,281 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:40:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:40:43,260 INFO L93 Difference]: Finished difference Result 16777 states and 23178 transitions. [2022-07-19 23:40:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:40:43,260 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 [2022-07-19 23:40:43,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:40:43,308 INFO L225 Difference]: With dead ends: 16777 [2022-07-19 23:40:43,308 INFO L226 Difference]: Without dead ends: 10488 [2022-07-19 23:40:43,327 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 [2022-07-19 23:40:43,328 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 2162 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 1361 mSolverCounterSat, 1195 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2265 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1195 IncrementalHoareTripleChecker+Valid, 1361 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-07-19 23:40:43,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2265 Valid, 2482 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1195 Valid, 1361 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-07-19 23:40:43,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10488 states. [2022-07-19 23:40:43,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10488 to 8796. [2022-07-19 23:40:43,613 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) [2022-07-19 23:40:43,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8796 states to 8796 states and 11865 transitions. [2022-07-19 23:40:43,637 INFO L78 Accepts]: Start accepts. Automaton has 8796 states and 11865 transitions. Word has length 257 [2022-07-19 23:40:43,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:40:43,637 INFO L495 AbstractCegarLoop]: Abstraction has 8796 states and 11865 transitions. [2022-07-19 23:40:43,638 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) [2022-07-19 23:40:43,638 INFO L276 IsEmpty]: Start isEmpty. Operand 8796 states and 11865 transitions. [2022-07-19 23:40:43,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-19 23:40:43,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:43,658 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] [2022-07-19 23:40:43,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 23:40:43,659 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:43,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:43,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1149940619, now seen corresponding path program 1 times [2022-07-19 23:40:43,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:40:43,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313136107] [2022-07-19 23:40:43,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:43,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:40:43,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:40:43,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:40:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:40:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:43,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:40:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:40:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:40:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:40:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:40:43,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:40:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:40:43,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:40:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:40:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 23:40:43,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:43,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:44,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:44,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-19 23:40:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:44,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:44,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:44,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:44,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 23:40:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:44,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:44,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:40:44,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:44,066 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2022-07-19 23:40:44,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:40:44,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313136107] [2022-07-19 23:40:44,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313136107] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:40:44,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:40:44,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 23:40:44,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545892890] [2022-07-19 23:40:44,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:44,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 23:40:44,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:40:44,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 23:40:44,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:40:44,068 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) [2022-07-19 23:40:49,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:40:49,141 INFO L93 Difference]: Finished difference Result 26127 states and 35783 transitions. [2022-07-19 23:40:49,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:40:49,142 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 [2022-07-19 23:40:49,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:40:49,196 INFO L225 Difference]: With dead ends: 26127 [2022-07-19 23:40:49,196 INFO L226 Difference]: Without dead ends: 17376 [2022-07-19 23:40:49,219 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 [2022-07-19 23:40:49,220 INFO L413 NwaCegarLoop]: 1397 mSDtfsCounter, 1504 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 2373 mSolverCounterSat, 772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 3694 SdHoareTripleChecker+Invalid, 3145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 772 IncrementalHoareTripleChecker+Valid, 2373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-19 23:40:49,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 3694 Invalid, 3145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [772 Valid, 2373 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-19 23:40:49,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17376 states. [2022-07-19 23:40:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17376 to 14374. [2022-07-19 23:40:49,753 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) [2022-07-19 23:40:49,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14374 states to 14374 states and 18966 transitions. [2022-07-19 23:40:49,788 INFO L78 Accepts]: Start accepts. Automaton has 14374 states and 18966 transitions. Word has length 238 [2022-07-19 23:40:49,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:40:49,789 INFO L495 AbstractCegarLoop]: Abstraction has 14374 states and 18966 transitions. [2022-07-19 23:40:49,789 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) [2022-07-19 23:40:49,789 INFO L276 IsEmpty]: Start isEmpty. Operand 14374 states and 18966 transitions. [2022-07-19 23:40:49,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-19 23:40:49,809 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:49,809 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] [2022-07-19 23:40:49,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 23:40:49,809 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:49,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:49,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1294557896, now seen corresponding path program 1 times [2022-07-19 23:40:49,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:40:49,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764898090] [2022-07-19 23:40:49,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:49,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:40:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:40:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:40:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:40:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:40:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:40:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:49,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:40:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:40:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:40:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:40:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:40:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:49,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:40:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:40:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:40:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:50,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:50,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:50,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:40:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:40:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:50,186 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-19 23:40:50,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:40:50,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764898090] [2022-07-19 23:40:50,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764898090] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:40:50,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:40:50,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 23:40:50,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688087549] [2022-07-19 23:40:50,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:50,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 23:40:50,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:40:50,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 23:40:50,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-19 23:40:50,188 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) [2022-07-19 23:40:52,197 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 [] [2022-07-19 23:40:54,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:40:54,476 INFO L93 Difference]: Finished difference Result 31744 states and 42582 transitions. [2022-07-19 23:40:54,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 23:40:54,477 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 [2022-07-19 23:40:54,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:40:54,533 INFO L225 Difference]: With dead ends: 31744 [2022-07-19 23:40:54,533 INFO L226 Difference]: Without dead ends: 17415 [2022-07-19 23:40:54,565 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 [2022-07-19 23:40:54,566 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 475 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 403 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 403 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-19 23:40:54,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 2760 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [403 Valid, 1513 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2022-07-19 23:40:54,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2022-07-19 23:40:55,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 14398. [2022-07-19 23:40:55,039 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) [2022-07-19 23:40:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14398 states to 14398 states and 18990 transitions. [2022-07-19 23:40:55,080 INFO L78 Accepts]: Start accepts. Automaton has 14398 states and 18990 transitions. Word has length 237 [2022-07-19 23:40:55,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:40:55,081 INFO L495 AbstractCegarLoop]: Abstraction has 14398 states and 18990 transitions. [2022-07-19 23:40:55,081 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) [2022-07-19 23:40:55,081 INFO L276 IsEmpty]: Start isEmpty. Operand 14398 states and 18990 transitions. [2022-07-19 23:40:55,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-07-19 23:40:55,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:40:55,102 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] [2022-07-19 23:40:55,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 23:40:55,102 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:40:55,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:40:55,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1026181340, now seen corresponding path program 1 times [2022-07-19 23:40:55,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:40:55,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598805801] [2022-07-19 23:40:55,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:55,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:40:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:40:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:40:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:40:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:55,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:40:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:40:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:55,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:40:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:40:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:40:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:40:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:40:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:40:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:40:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:40:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:55,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:40:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:40:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:40:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:40:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:40:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:40:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:40:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:55,508 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-07-19 23:40:55,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:40:55,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598805801] [2022-07-19 23:40:55,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598805801] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:40:55,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970629587] [2022-07-19 23:40:55,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:40:55,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:40:55,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:40:55,510 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) [2022-07-19 23:40:55,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 23:40:56,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:40:56,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 2087 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-19 23:40:56,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:40:56,399 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 106 proven. 8 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-07-19 23:40:56,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:40:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-07-19 23:40:57,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970629587] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-19 23:40:57,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-19 23:40:57,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 9] total 21 [2022-07-19 23:40:57,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155913445] [2022-07-19 23:40:57,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:40:57,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 23:40:57,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:40:57,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 23:40:57,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2022-07-19 23:40:57,615 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) [2022-07-19 23:41:02,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:02,612 INFO L93 Difference]: Finished difference Result 38624 states and 53500 transitions. [2022-07-19 23:41:02,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 23:41:02,612 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 [2022-07-19 23:41:02,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:02,734 INFO L225 Difference]: With dead ends: 38624 [2022-07-19 23:41:02,734 INFO L226 Difference]: Without dead ends: 31233 [2022-07-19 23:41:02,772 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 [2022-07-19 23:41:02,773 INFO L413 NwaCegarLoop]: 1856 mSDtfsCounter, 3258 mSDsluCounter, 4356 mSDsCounter, 0 mSdLazyCounter, 5015 mSolverCounterSat, 1300 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3421 SdHoareTripleChecker+Valid, 6212 SdHoareTripleChecker+Invalid, 6315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1300 IncrementalHoareTripleChecker+Valid, 5015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:02,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3421 Valid, 6212 Invalid, 6315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1300 Valid, 5015 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-19 23:41:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31233 states. [2022-07-19 23:41:03,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31233 to 22242. [2022-07-19 23:41:03,865 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) [2022-07-19 23:41:03,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22242 states to 22242 states and 29553 transitions. [2022-07-19 23:41:03,924 INFO L78 Accepts]: Start accepts. Automaton has 22242 states and 29553 transitions. Word has length 239 [2022-07-19 23:41:03,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:03,925 INFO L495 AbstractCegarLoop]: Abstraction has 22242 states and 29553 transitions. [2022-07-19 23:41:03,925 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) [2022-07-19 23:41:03,925 INFO L276 IsEmpty]: Start isEmpty. Operand 22242 states and 29553 transitions. [2022-07-19 23:41:03,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-19 23:41:03,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:03,943 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] [2022-07-19 23:41:03,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 23:41:04,164 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 [2022-07-19 23:41:04,165 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:04,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:04,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1190959835, now seen corresponding path program 1 times [2022-07-19 23:41:04,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:41:04,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404142991] [2022-07-19 23:41:04,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:04,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:41:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:41:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:41:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:41:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:41:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:41:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:41:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:41:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:41:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:41:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:41:04,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:41:04,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:41:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:41:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:41:04,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:41:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:04,517 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2022-07-19 23:41:04,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:41:04,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404142991] [2022-07-19 23:41:04,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404142991] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:04,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:41:04,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-19 23:41:04,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433572656] [2022-07-19 23:41:04,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:04,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-19 23:41:04,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:41:04,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-19 23:41:04,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 23:41:04,519 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) [2022-07-19 23:41:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:07,684 INFO L93 Difference]: Finished difference Result 49080 states and 66666 transitions. [2022-07-19 23:41:07,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:41:07,685 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 [2022-07-19 23:41:07,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:07,774 INFO L225 Difference]: With dead ends: 49080 [2022-07-19 23:41:07,775 INFO L226 Difference]: Without dead ends: 26883 [2022-07-19 23:41:07,812 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 [2022-07-19 23:41:07,813 INFO L413 NwaCegarLoop]: 942 mSDtfsCounter, 767 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:07,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 3004 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-19 23:41:07,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26883 states. [2022-07-19 23:41:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26883 to 22214. [2022-07-19 23:41:08,792 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) [2022-07-19 23:41:08,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22214 states to 22214 states and 29483 transitions. [2022-07-19 23:41:08,857 INFO L78 Accepts]: Start accepts. Automaton has 22214 states and 29483 transitions. Word has length 241 [2022-07-19 23:41:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:08,858 INFO L495 AbstractCegarLoop]: Abstraction has 22214 states and 29483 transitions. [2022-07-19 23:41:08,858 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) [2022-07-19 23:41:08,858 INFO L276 IsEmpty]: Start isEmpty. Operand 22214 states and 29483 transitions. [2022-07-19 23:41:08,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-19 23:41:08,874 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:08,875 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] [2022-07-19 23:41:08,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 23:41:08,875 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:08,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:08,875 INFO L85 PathProgramCache]: Analyzing trace with hash 133663156, now seen corresponding path program 1 times [2022-07-19 23:41:08,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:41:08,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756763476] [2022-07-19 23:41:08,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:08,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:41:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:08,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:41:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:08,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:41:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:08,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:08,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:41:08,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:08,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:41:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:41:09,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:41:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:41:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:41:09,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:41:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:41:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:41:09,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:41:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:41:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:09,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:09,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:41:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:09,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:09,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:41:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,242 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-19 23:41:09,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:41:09,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756763476] [2022-07-19 23:41:09,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756763476] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:41:09,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775221568] [2022-07-19 23:41:09,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:09,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:41:09,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:41:09,255 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) [2022-07-19 23:41:09,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 23:41:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:09,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 2096 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-19 23:41:09,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-19 23:41:09,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:41:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2022-07-19 23:41:09,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775221568] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 23:41:09,939 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 23:41:09,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 10 [2022-07-19 23:41:09,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351002439] [2022-07-19 23:41:09,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 23:41:09,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 23:41:09,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:41:09,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 23:41:09,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-19 23:41:09,941 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) [2022-07-19 23:41:11,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:41:15,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:15,143 INFO L93 Difference]: Finished difference Result 49456 states and 66962 transitions. [2022-07-19 23:41:15,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 23:41:15,144 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 [2022-07-19 23:41:15,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:15,243 INFO L225 Difference]: With dead ends: 49456 [2022-07-19 23:41:15,243 INFO L226 Difference]: Without dead ends: 27287 [2022-07-19 23:41:15,283 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 [2022-07-19 23:41:15,284 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 696 mSDsluCounter, 3059 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 2954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:15,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 4010 Invalid, 2954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-19 23:41:15,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27287 states. [2022-07-19 23:41:16,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27287 to 22646. [2022-07-19 23:41:16,114 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) [2022-07-19 23:41:16,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22646 states to 22646 states and 29915 transitions. [2022-07-19 23:41:16,173 INFO L78 Accepts]: Start accepts. Automaton has 22646 states and 29915 transitions. Word has length 243 [2022-07-19 23:41:16,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:16,174 INFO L495 AbstractCegarLoop]: Abstraction has 22646 states and 29915 transitions. [2022-07-19 23:41:16,174 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) [2022-07-19 23:41:16,174 INFO L276 IsEmpty]: Start isEmpty. Operand 22646 states and 29915 transitions. [2022-07-19 23:41:16,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-07-19 23:41:16,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:16,189 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] [2022-07-19 23:41:16,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 23:41:16,403 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 [2022-07-19 23:41:16,404 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:16,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:16,404 INFO L85 PathProgramCache]: Analyzing trace with hash -132942688, now seen corresponding path program 2 times [2022-07-19 23:41:16,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:41:16,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816941739] [2022-07-19 23:41:16,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:16,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:41:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:41:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:41:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:41:16,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:41:16,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:41:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:41:16,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:41:16,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:41:16,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:41:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:41:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:41:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:41:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:41:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:16,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:41:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:41:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:16,943 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2022-07-19 23:41:16,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:41:16,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816941739] [2022-07-19 23:41:16,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816941739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:16,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:41:16,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-19 23:41:16,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793698211] [2022-07-19 23:41:16,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:16,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-19 23:41:16,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:41:16,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-19 23:41:16,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-07-19 23:41:16,945 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) [2022-07-19 23:41:22,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:22,120 INFO L93 Difference]: Finished difference Result 49958 states and 67478 transitions. [2022-07-19 23:41:22,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-19 23:41:22,136 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 [2022-07-19 23:41:22,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:22,251 INFO L225 Difference]: With dead ends: 49958 [2022-07-19 23:41:22,251 INFO L226 Difference]: Without dead ends: 27357 [2022-07-19 23:41:22,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-07-19 23:41:22,304 INFO L413 NwaCegarLoop]: 956 mSDtfsCounter, 742 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 769 SdHoareTripleChecker+Valid, 4276 SdHoareTripleChecker+Invalid, 3142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:22,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [769 Valid, 4276 Invalid, 3142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-19 23:41:22,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27357 states. [2022-07-19 23:41:23,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27357 to 22968. [2022-07-19 23:41:23,294 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) [2022-07-19 23:41:23,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22968 states to 22968 states and 30359 transitions. [2022-07-19 23:41:23,362 INFO L78 Accepts]: Start accepts. Automaton has 22968 states and 30359 transitions. Word has length 249 [2022-07-19 23:41:23,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:23,363 INFO L495 AbstractCegarLoop]: Abstraction has 22968 states and 30359 transitions. [2022-07-19 23:41:23,363 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) [2022-07-19 23:41:23,363 INFO L276 IsEmpty]: Start isEmpty. Operand 22968 states and 30359 transitions. [2022-07-19 23:41:23,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-19 23:41:23,378 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:23,378 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] [2022-07-19 23:41:23,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 23:41:23,379 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:23,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:23,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1109577762, now seen corresponding path program 1 times [2022-07-19 23:41:23,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:41:23,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751139992] [2022-07-19 23:41:23,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:23,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:41:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:41:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:41:23,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:41:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:41:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:41:23,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:23,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:41:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:41:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:41:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:41:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:41:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:41:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:41:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:41:23,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:23,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:23,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:24,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:24,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:24,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:24,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:41:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:24,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 23:41:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:24,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:24,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-19 23:41:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:24,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:25,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:25,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:41:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:25,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:25,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:25,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:41:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:25,430 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-19 23:41:25,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:41:25,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751139992] [2022-07-19 23:41:25,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751139992] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:41:25,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878998974] [2022-07-19 23:41:25,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:25,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:41:25,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:41:25,433 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) [2022-07-19 23:41:25,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 23:41:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:26,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 2170 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-19 23:41:26,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2022-07-19 23:41:26,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:41:26,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878998974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:26,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:41:26,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [23] total 25 [2022-07-19 23:41:26,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959022490] [2022-07-19 23:41:26,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:26,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:41:26,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:41:26,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:41:26,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=542, Unknown=0, NotChecked=0, Total=600 [2022-07-19 23:41:26,092 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) [2022-07-19 23:41:27,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:27,142 INFO L93 Difference]: Finished difference Result 34638 states and 45789 transitions. [2022-07-19 23:41:27,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:41:27,143 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 [2022-07-19 23:41:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:27,174 INFO L225 Difference]: With dead ends: 34638 [2022-07-19 23:41:27,174 INFO L226 Difference]: Without dead ends: 11703 [2022-07-19 23:41:27,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2022-07-19 23:41:27,207 INFO L413 NwaCegarLoop]: 997 mSDtfsCounter, 17 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:27,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2981 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-19 23:41:27,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11703 states. [2022-07-19 23:41:27,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11703 to 11550. [2022-07-19 23:41:27,631 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) [2022-07-19 23:41:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11550 states to 11550 states and 15283 transitions. [2022-07-19 23:41:27,660 INFO L78 Accepts]: Start accepts. Automaton has 11550 states and 15283 transitions. Word has length 250 [2022-07-19 23:41:27,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:27,661 INFO L495 AbstractCegarLoop]: Abstraction has 11550 states and 15283 transitions. [2022-07-19 23:41:27,661 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) [2022-07-19 23:41:27,661 INFO L276 IsEmpty]: Start isEmpty. Operand 11550 states and 15283 transitions. [2022-07-19 23:41:27,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-19 23:41:27,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:27,669 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] [2022-07-19 23:41:27,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 23:41:27,890 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 [2022-07-19 23:41:27,890 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:27,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:27,891 INFO L85 PathProgramCache]: Analyzing trace with hash 784756124, now seen corresponding path program 1 times [2022-07-19 23:41:27,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:41:27,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068738490] [2022-07-19 23:41:27,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:27,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:41:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:27,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:41:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:41:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:41:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:41:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:41:28,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:28,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:41:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:41:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:41:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:41:28,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:41:28,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:41:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:41:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:41:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:41:28,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 23:41:28,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-19 23:41:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:28,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:29,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:29,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:41:29,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:29,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:29,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:29,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:41:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2022-07-19 23:41:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:41:29,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068738490] [2022-07-19 23:41:29,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068738490] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:41:29,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593469044] [2022-07-19 23:41:29,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:29,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:41:29,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:41:29,378 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) [2022-07-19 23:41:29,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 23:41:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:29,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 2171 conjuncts, 41 conjunts are in the unsatisfiable core [2022-07-19 23:41:29,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2022-07-19 23:41:30,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:41:30,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593469044] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:30,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:41:30,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 23 [2022-07-19 23:41:30,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122788491] [2022-07-19 23:41:30,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:30,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 23:41:30,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:41:30,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 23:41:30,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2022-07-19 23:41:30,071 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) [2022-07-19 23:41:30,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:30,507 INFO L93 Difference]: Finished difference Result 23027 states and 30724 transitions. [2022-07-19 23:41:30,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:41:30,508 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 [2022-07-19 23:41:30,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:30,539 INFO L225 Difference]: With dead ends: 23027 [2022-07-19 23:41:30,540 INFO L226 Difference]: Without dead ends: 11537 [2022-07-19 23:41:30,560 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 [2022-07-19 23:41:30,561 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 [2022-07-19 23:41:30,561 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] [2022-07-19 23:41:30,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11537 states. [2022-07-19 23:41:30,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11537 to 11487. [2022-07-19 23:41:30,910 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) [2022-07-19 23:41:30,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11487 states to 11487 states and 15151 transitions. [2022-07-19 23:41:30,943 INFO L78 Accepts]: Start accepts. Automaton has 11487 states and 15151 transitions. Word has length 250 [2022-07-19 23:41:30,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:30,944 INFO L495 AbstractCegarLoop]: Abstraction has 11487 states and 15151 transitions. [2022-07-19 23:41:30,944 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) [2022-07-19 23:41:30,944 INFO L276 IsEmpty]: Start isEmpty. Operand 11487 states and 15151 transitions. [2022-07-19 23:41:30,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-07-19 23:41:30,952 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:30,953 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] [2022-07-19 23:41:30,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 23:41:31,174 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 [2022-07-19 23:41:31,174 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:31,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:31,175 INFO L85 PathProgramCache]: Analyzing trace with hash 576081665, now seen corresponding path program 1 times [2022-07-19 23:41:31,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:41:31,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522460398] [2022-07-19 23:41:31,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:31,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:41:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:41:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:41:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:41:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:41:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:41:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:41:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:41:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:41:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:41:31,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:41:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:41:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:41:31,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:41:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:31,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:41:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 23:41:31,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 23:41:31,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 23:41:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 23:41:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:41:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2022-07-19 23:41:31,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:41:31,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522460398] [2022-07-19 23:41:31,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522460398] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:41:31,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928329333] [2022-07-19 23:41:31,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:31,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:41:31,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:41:31,703 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) [2022-07-19 23:41:31,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-19 23:41:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:32,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-19 23:41:32,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 88 proven. 8 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-07-19 23:41:32,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:41:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-19 23:41:33,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928329333] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-19 23:41:33,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-19 23:41:33,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8, 8] total 18 [2022-07-19 23:41:33,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556298875] [2022-07-19 23:41:33,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:33,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-19 23:41:33,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:41:33,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-19 23:41:33,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2022-07-19 23:41:33,175 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) [2022-07-19 23:41:39,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:39,206 INFO L93 Difference]: Finished difference Result 32235 states and 45440 transitions. [2022-07-19 23:41:39,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 23:41:39,206 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 [2022-07-19 23:41:39,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:39,283 INFO L225 Difference]: With dead ends: 32235 [2022-07-19 23:41:39,283 INFO L226 Difference]: Without dead ends: 24365 [2022-07-19 23:41:39,304 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 [2022-07-19 23:41:39,305 INFO L413 NwaCegarLoop]: 1920 mSDtfsCounter, 5232 mSDsluCounter, 6023 mSDsCounter, 0 mSdLazyCounter, 4913 mSolverCounterSat, 2326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5316 SdHoareTripleChecker+Valid, 7943 SdHoareTripleChecker+Invalid, 7239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2326 IncrementalHoareTripleChecker+Valid, 4913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:39,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5316 Valid, 7943 Invalid, 7239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2326 Valid, 4913 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-19 23:41:39,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24365 states. [2022-07-19 23:41:40,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24365 to 16557. [2022-07-19 23:41:40,073 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) [2022-07-19 23:41:40,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16557 states to 16557 states and 22054 transitions. [2022-07-19 23:41:40,113 INFO L78 Accepts]: Start accepts. Automaton has 16557 states and 22054 transitions. Word has length 258 [2022-07-19 23:41:40,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:40,114 INFO L495 AbstractCegarLoop]: Abstraction has 16557 states and 22054 transitions. [2022-07-19 23:41:40,114 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) [2022-07-19 23:41:40,114 INFO L276 IsEmpty]: Start isEmpty. Operand 16557 states and 22054 transitions. [2022-07-19 23:41:40,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-07-19 23:41:40,122 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:40,122 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] [2022-07-19 23:41:40,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-19 23:41:40,337 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 [2022-07-19 23:41:40,337 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:40,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:40,337 INFO L85 PathProgramCache]: Analyzing trace with hash 491601537, now seen corresponding path program 1 times [2022-07-19 23:41:40,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:41:40,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884968236] [2022-07-19 23:41:40,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:40,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:41:40,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:41:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:41:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:41:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:41:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:41:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:41:40,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:41:40,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:41:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:41:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:41:40,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:41:40,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:41:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:41:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:41:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 23:41:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-19 23:41:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 23:41:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:41:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2022-07-19 23:41:40,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:41:40,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884968236] [2022-07-19 23:41:40,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884968236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:40,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:41:40,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-19 23:41:40,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971939721] [2022-07-19 23:41:40,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:40,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-19 23:41:40,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:41:40,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-19 23:41:40,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-07-19 23:41:40,886 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) [2022-07-19 23:41:43,721 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 [] [2022-07-19 23:41:49,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:49,823 INFO L93 Difference]: Finished difference Result 38610 states and 51902 transitions. [2022-07-19 23:41:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-19 23:41:49,823 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 [2022-07-19 23:41:49,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:49,894 INFO L225 Difference]: With dead ends: 38610 [2022-07-19 23:41:49,894 INFO L226 Difference]: Without dead ends: 22113 [2022-07-19 23:41:49,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2022-07-19 23:41:49,931 INFO L413 NwaCegarLoop]: 1037 mSDtfsCounter, 2090 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 4879 mSolverCounterSat, 1283 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 6163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1283 IncrementalHoareTripleChecker+Valid, 4879 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:41:49,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2283 Valid, 4157 Invalid, 6163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1283 Valid, 4879 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-07-19 23:41:49,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22113 states. [2022-07-19 23:41:50,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22113 to 18006. [2022-07-19 23:41:50,858 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) [2022-07-19 23:41:50,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18006 states to 18006 states and 23755 transitions. [2022-07-19 23:41:50,898 INFO L78 Accepts]: Start accepts. Automaton has 18006 states and 23755 transitions. Word has length 247 [2022-07-19 23:41:50,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:50,899 INFO L495 AbstractCegarLoop]: Abstraction has 18006 states and 23755 transitions. [2022-07-19 23:41:50,899 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) [2022-07-19 23:41:50,899 INFO L276 IsEmpty]: Start isEmpty. Operand 18006 states and 23755 transitions. [2022-07-19 23:41:50,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-07-19 23:41:50,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:50,907 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] [2022-07-19 23:41:50,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-19 23:41:50,908 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:50,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:50,908 INFO L85 PathProgramCache]: Analyzing trace with hash -484872815, now seen corresponding path program 1 times [2022-07-19 23:41:50,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:41:50,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216685696] [2022-07-19 23:41:50,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:50,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:41:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:41:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:41:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:41:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:41:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:41:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:41:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:41:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:41:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:41:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 23:41:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-19 23:41:51,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-19 23:41:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 23:41:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:51,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:41:51,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 23:41:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 23:41:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 23:41:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:41:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:41:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,220 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2022-07-19 23:41:51,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:41:51,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216685696] [2022-07-19 23:41:51,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216685696] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:41:51,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622288796] [2022-07-19 23:41:51,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:51,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:41:51,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:41:51,222 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) [2022-07-19 23:41:51,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-19 23:41:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:51,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 2213 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-19 23:41:51,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:51,931 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2022-07-19 23:41:51,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:41:51,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622288796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:41:51,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:41:51,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2022-07-19 23:41:51,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39987762] [2022-07-19 23:41:51,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:41:51,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:41:51,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:41:51,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:41:51,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-19 23:41:51,933 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) [2022-07-19 23:41:52,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:41:52,784 INFO L93 Difference]: Finished difference Result 36061 states and 47633 transitions. [2022-07-19 23:41:52,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 23:41:52,784 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 [2022-07-19 23:41:52,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:41:52,841 INFO L225 Difference]: With dead ends: 36061 [2022-07-19 23:41:52,842 INFO L226 Difference]: Without dead ends: 18035 [2022-07-19 23:41:52,878 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 [2022-07-19 23:41:52,878 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 [2022-07-19 23:41:52,878 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] [2022-07-19 23:41:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18035 states. [2022-07-19 23:41:53,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18035 to 18035. [2022-07-19 23:41:53,718 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) [2022-07-19 23:41:53,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18035 states to 18035 states and 23784 transitions. [2022-07-19 23:41:53,768 INFO L78 Accepts]: Start accepts. Automaton has 18035 states and 23784 transitions. Word has length 257 [2022-07-19 23:41:53,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:41:53,769 INFO L495 AbstractCegarLoop]: Abstraction has 18035 states and 23784 transitions. [2022-07-19 23:41:53,769 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) [2022-07-19 23:41:53,769 INFO L276 IsEmpty]: Start isEmpty. Operand 18035 states and 23784 transitions. [2022-07-19 23:41:53,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-19 23:41:53,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:41:53,777 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] [2022-07-19 23:41:53,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-19 23:41:53,979 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 [2022-07-19 23:41:53,980 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:41:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:41:53,980 INFO L85 PathProgramCache]: Analyzing trace with hash 822016599, now seen corresponding path program 1 times [2022-07-19 23:41:53,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:41:53,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624472370] [2022-07-19 23:41:53,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:53,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:41:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:41:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:41:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:41:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:41:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:41:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:41:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:41:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:41:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:41:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:41:54,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:41:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:41:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-19 23:41:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-19 23:41:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-19 23:41:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-19 23:41:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:41:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 23:41:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 23:41:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 23:41:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:54,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:41:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:41:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:41:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:41:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:54,554 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-19 23:41:54,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:41:54,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624472370] [2022-07-19 23:41:54,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624472370] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:41:54,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238707399] [2022-07-19 23:41:54,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:41:54,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:41:54,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:41:54,576 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) [2022-07-19 23:41:54,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-19 23:41:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:41:55,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 2243 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 23:41:55,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:41:55,571 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 139 proven. 1 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-07-19 23:41:55,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:41:55,781 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2022-07-19 23:41:55,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238707399] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 23:41:55,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 23:41:55,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 14 [2022-07-19 23:41:55,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39303245] [2022-07-19 23:41:55,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 23:41:55,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-19 23:41:55,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:41:55,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-19 23:41:55,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-07-19 23:41:55,784 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) [2022-07-19 23:41:58,440 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 [] [2022-07-19 23:42:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:01,951 INFO L93 Difference]: Finished difference Result 38848 states and 51933 transitions. [2022-07-19 23:42:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 23:42:01,952 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 [2022-07-19 23:42:01,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:02,001 INFO L225 Difference]: With dead ends: 38848 [2022-07-19 23:42:02,002 INFO L226 Difference]: Without dead ends: 20791 [2022-07-19 23:42:02,027 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 [2022-07-19 23:42:02,028 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 460 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 416 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 3425 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:02,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 3425 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 1988 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-07-19 23:42:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20791 states. [2022-07-19 23:42:02,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20791 to 18066. [2022-07-19 23:42:02,823 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) [2022-07-19 23:42:02,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18066 states to 18066 states and 23815 transitions. [2022-07-19 23:42:02,868 INFO L78 Accepts]: Start accepts. Automaton has 18066 states and 23815 transitions. Word has length 259 [2022-07-19 23:42:02,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:02,868 INFO L495 AbstractCegarLoop]: Abstraction has 18066 states and 23815 transitions. [2022-07-19 23:42:02,868 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) [2022-07-19 23:42:02,869 INFO L276 IsEmpty]: Start isEmpty. Operand 18066 states and 23815 transitions. [2022-07-19 23:42:02,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-07-19 23:42:02,876 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:02,877 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] [2022-07-19 23:42:02,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-19 23:42:03,098 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 [2022-07-19 23:42:03,098 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:03,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:03,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1297530769, now seen corresponding path program 2 times [2022-07-19 23:42:03,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:42:03,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026627212] [2022-07-19 23:42:03,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:03,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:42:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:42:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:42:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:42:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:42:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:42:03,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:42:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:42:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:42:03,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:42:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:42:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:42:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:42:03,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 23:42:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 23:42:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 23:42:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 23:42:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:42:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:42:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:42:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:04,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 23:42:04,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:04,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:04,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 23:42:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:04,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 23:42:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:04,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:05,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:42:05,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:05,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:05,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:05,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:42:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:05,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:42:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:05,045 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-07-19 23:42:05,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:42:05,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026627212] [2022-07-19 23:42:05,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026627212] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:42:05,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302522564] [2022-07-19 23:42:05,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 23:42:05,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:42:05,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:42:05,047 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) [2022-07-19 23:42:05,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-19 23:42:05,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-19 23:42:05,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 23:42:05,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 56 conjunts are in the unsatisfiable core [2022-07-19 23:42:05,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 407 trivial. 0 not checked. [2022-07-19 23:42:06,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 23:42:06,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302522564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:42:06,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 23:42:06,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [28] total 38 [2022-07-19 23:42:06,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355044974] [2022-07-19 23:42:06,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:42:06,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-19 23:42:06,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:42:06,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-19 23:42:06,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1310, Unknown=0, NotChecked=0, Total=1406 [2022-07-19 23:42:06,206 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) [2022-07-19 23:42:07,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:42:07,317 INFO L93 Difference]: Finished difference Result 38017 states and 51396 transitions. [2022-07-19 23:42:07,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-19 23:42:07,318 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 [2022-07-19 23:42:07,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:42:07,379 INFO L225 Difference]: With dead ends: 38017 [2022-07-19 23:42:07,379 INFO L226 Difference]: Without dead ends: 20015 [2022-07-19 23:42:07,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=133, Invalid=1759, Unknown=0, NotChecked=0, Total=1892 [2022-07-19 23:42:07,422 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 23:42:07,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 12360 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 23:42:07,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20015 states. [2022-07-19 23:42:08,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20015 to 18388. [2022-07-19 23:42:08,479 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) [2022-07-19 23:42:08,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18388 states to 18388 states and 24151 transitions. [2022-07-19 23:42:08,537 INFO L78 Accepts]: Start accepts. Automaton has 18388 states and 24151 transitions. Word has length 265 [2022-07-19 23:42:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:42:08,538 INFO L495 AbstractCegarLoop]: Abstraction has 18388 states and 24151 transitions. [2022-07-19 23:42:08,538 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) [2022-07-19 23:42:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 18388 states and 24151 transitions. [2022-07-19 23:42:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-19 23:42:08,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:42:08,547 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] [2022-07-19 23:42:08,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-19 23:42:08,751 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 [2022-07-19 23:42:08,752 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:42:08,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:42:08,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1093437602, now seen corresponding path program 1 times [2022-07-19 23:42:08,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:42:08,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617812663] [2022-07-19 23:42:08,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:08,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:42:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 23:42:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 23:42:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:42:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:42:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 23:42:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-19 23:42:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-19 23:42:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-19 23:42:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-19 23:42:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-19 23:42:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-19 23:42:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-19 23:42:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-19 23:42:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-19 23:42:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-19 23:42:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-19 23:42:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:42:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:42:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:42:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-19 23:42:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 23:42:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 23:42:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-19 23:42:10,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:42:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:42:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-19 23:42:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:42:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:10,941 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-07-19 23:42:10,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:42:10,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617812663] [2022-07-19 23:42:10,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617812663] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 23:42:10,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077152993] [2022-07-19 23:42:10,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:42:10,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 23:42:10,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:42:10,943 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) [2022-07-19 23:42:10,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-19 23:42:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:42:12,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 2381 conjuncts, 141 conjunts are in the unsatisfiable core [2022-07-19 23:42:12,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 23:42:12,985 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 [2022-07-19 23:42:12,992 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 [2022-07-19 23:42:13,246 INFO L356 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-07-19 23:42:13,246 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 [2022-07-19 23:42:13,260 INFO L356 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2022-07-19 23:42:13,261 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 [2022-07-19 23:42:19,093 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-07-19 23:42:19,093 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 [2022-07-19 23:42:19,099 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-07-19 23:42:19,099 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 [2022-07-19 23:42:19,690 INFO L356 Elim1Store]: treesize reduction 3, result has 78.6 percent of original size [2022-07-19 23:42:19,690 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 [2022-07-19 23:42:19,756 INFO L356 Elim1Store]: treesize reduction 27, result has 40.0 percent of original size [2022-07-19 23:42:19,756 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 [2022-07-19 23:42:19,764 INFO L356 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2022-07-19 23:42:19,764 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 [2022-07-19 23:42:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 118 proven. 10 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2022-07-19 23:42:19,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 23:42:20,502 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 [2022-07-19 23:42:20,514 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 [2022-07-19 23:42:21,152 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 [2022-07-19 23:42:21,156 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 [2022-07-19 23:42:22,159 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 23:42:22,160 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 [2022-07-19 23:42:22,192 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-19 23:42:22,193 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 [2022-07-19 23:42:31,004 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 [2022-07-19 23:42:31,008 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 [2022-07-19 23:42:58,861 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 [2022-07-19 23:42:58,865 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