./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.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-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.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 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 00:46:02,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 00:46:02,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 00:46:02,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 00:46:02,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 00:46:02,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 00:46:02,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 00:46:02,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 00:46:02,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 00:46:02,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 00:46:02,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 00:46:02,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 00:46:02,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 00:46:02,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 00:46:02,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 00:46:02,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 00:46:02,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 00:46:02,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 00:46:02,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 00:46:02,999 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 00:46:03,000 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 00:46:03,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 00:46:03,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 00:46:03,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 00:46:03,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 00:46:03,009 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 00:46:03,009 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 00:46:03,009 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 00:46:03,010 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 00:46:03,010 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 00:46:03,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 00:46:03,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 00:46:03,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 00:46:03,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 00:46:03,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 00:46:03,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 00:46:03,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 00:46:03,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 00:46:03,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 00:46:03,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 00:46:03,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 00:46:03,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 00:46:03,018 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 00:46:03,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 00:46:03,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 00:46:03,049 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 00:46:03,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 00:46:03,050 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 00:46:03,050 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 00:46:03,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 00:46:03,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 00:46:03,051 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 00:46:03,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 00:46:03,051 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 00:46:03,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 00:46:03,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 00:46:03,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 00:46:03,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 00:46:03,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 00:46:03,052 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 00:46:03,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 00:46:03,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 00:46:03,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 00:46:03,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 00:46:03,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:46:03,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 00:46:03,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 00:46:03,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 00:46:03,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 00:46:03,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 00:46:03,054 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 00:46:03,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 00:46:03,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 00:46:03,054 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1264b42ba0b5dcb83ee2e2b35dfcd5adbd8a3fb1fa3fff4328b672883ffa55c1 [2022-07-20 00:46:03,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 00:46:03,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 00:46:03,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 00:46:03,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 00:46:03,207 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 00:46:03,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-07-20 00:46:03,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b61d3280/7131876770224a7b8e9241a2747d90e0/FLAGe084775f3 [2022-07-20 00:46:03,837 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 00:46:03,837 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-07-20 00:46:03,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b61d3280/7131876770224a7b8e9241a2747d90e0/FLAGe084775f3 [2022-07-20 00:46:04,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b61d3280/7131876770224a7b8e9241a2747d90e0 [2022-07-20 00:46:04,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 00:46:04,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 00:46:04,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 00:46:04,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 00:46:04,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 00:46:04,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:46:04" (1/1) ... [2022-07-20 00:46:04,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699e9788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:04, skipping insertion in model container [2022-07-20 00:46:04,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:46:04" (1/1) ... [2022-07-20 00:46:04,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 00:46:04,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 00:46:05,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2022-07-20 00:46:05,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:46:05,365 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 00:46:05,580 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i[237227,237240] [2022-07-20 00:46:05,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 00:46:05,642 INFO L208 MainTranslator]: Completed translation [2022-07-20 00:46:05,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05 WrapperNode [2022-07-20 00:46:05,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 00:46:05,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 00:46:05,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 00:46:05,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 00:46:05,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,838 INFO L137 Inliner]: procedures = 306, calls = 1743, calls flagged for inlining = 109, calls inlined = 100, statements flattened = 3808 [2022-07-20 00:46:05,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 00:46:05,839 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 00:46:05,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 00:46:05,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 00:46:05,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,962 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 00:46:05,963 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 00:46:05,963 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 00:46:05,963 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 00:46:05,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (1/1) ... [2022-07-20 00:46:05,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 00:46:05,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:46:06,019 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) [2022-07-20 00:46:06,049 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 [2022-07-20 00:46:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-20 00:46:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-20 00:46:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_memstick_host [2022-07-20 00:46:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_memstick_host [2022-07-20 00:46:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-20 00:46:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-20 00:46:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 00:46:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 00:46:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 00:46:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 00:46:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure msb_stop [2022-07-20 00:46:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_stop [2022-07-20 00:46:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_pba [2022-07-20 00:46:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_pba [2022-07-20 00:46:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-07-20 00:46:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-07-20 00:46:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 00:46:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 00:46:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure blk_fetch_request [2022-07-20 00:46:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_fetch_request [2022-07-20 00:46:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-20 00:46:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-20 00:46:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-07-20 00:46:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-07-20 00:46:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 00:46:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 00:46:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 00:46:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 00:46:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure msb_switch_to_parallel [2022-07-20 00:46:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_switch_to_parallel [2022-07-20 00:46:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 00:46:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 00:46:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 00:46:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 00:46:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure msb_validate_used_block_bitmap [2022-07-20 00:46:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_validate_used_block_bitmap [2022-07-20 00:46:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-20 00:46:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-20 00:46:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure msb_verify_block [2022-07-20 00:46:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_verify_block [2022-07-20 00:46:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 00:46:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 00:46:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-20 00:46:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-20 00:46:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_msb_disk_lock [2022-07-20 00:46:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_msb_disk_lock [2022-07-20 00:46:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 00:46:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_write [2022-07-20 00:46:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_write [2022-07-20 00:46:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-20 00:46:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-07-20 00:46:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-07-20 00:46:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_set_drvdata [2022-07-20 00:46:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_set_drvdata [2022-07-20 00:46:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_end_request [2022-07-20 00:46:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_end_request [2022-07-20 00:46:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 00:46:06,072 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-20 00:46:06,072 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-20 00:46:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure msb_invalidate_reg_window [2022-07-20 00:46:06,073 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_invalidate_reg_window [2022-07-20 00:46:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure msb_io_work [2022-07-20 00:46:06,073 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_io_work [2022-07-20 00:46:06,073 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-20 00:46:06,073 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-20 00:46:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2022-07-20 00:46:06,074 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2022-07-20 00:46:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 00:46:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure msb_erase_block [2022-07-20 00:46:06,074 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_erase_block [2022-07-20 00:46:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 00:46:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure memstick_get_drvdata [2022-07-20 00:46:06,074 INFO L138 BoogieDeclarations]: Found implementation of procedure memstick_get_drvdata [2022-07-20 00:46:06,074 INFO L130 BoogieDeclarations]: Found specification of procedure msb_data_clear [2022-07-20 00:46:06,075 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_data_clear [2022-07-20 00:46:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-20 00:46:06,075 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-20 00:46:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-20 00:46:06,075 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-20 00:46:06,075 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-20 00:46:06,076 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-20 00:46:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-20 00:46:06,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-20 00:46:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-20 00:46:06,076 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-20 00:46:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_bad_block_table [2022-07-20 00:46:06,076 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_bad_block_table [2022-07-20 00:46:06,076 INFO L130 BoogieDeclarations]: Found specification of procedure msb_update_block [2022-07-20 00:46:06,076 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_update_block [2022-07-20 00:46:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_flush [2022-07-20 00:46:06,077 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_flush [2022-07-20 00:46:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_next [2022-07-20 00:46:06,077 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_next [2022-07-20 00:46:06,077 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-20 00:46:06,077 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-20 00:46:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_start [2022-07-20 00:46:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_start [2022-07-20 00:46:06,078 INFO L130 BoogieDeclarations]: Found specification of procedure msb_run_state_machine [2022-07-20 00:46:06,078 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_run_state_machine [2022-07-20 00:46:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure msb_sg_copy [2022-07-20 00:46:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_sg_copy [2022-07-20 00:46:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-07-20 00:46:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-07-20 00:46:06,079 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 00:46:06,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 00:46:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_zero_bit [2022-07-20 00:46:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_zero_bit [2022-07-20 00:46:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_memstick_host [2022-07-20 00:46:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_memstick_host [2022-07-20 00:46:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 00:46:06,080 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-20 00:46:06,080 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-20 00:46:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure msb_get_zone_from_lba [2022-07-20 00:46:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_get_zone_from_lba [2022-07-20 00:46:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure msb_reset [2022-07-20 00:46:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_reset [2022-07-20 00:46:06,081 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_2 [2022-07-20 00:46:06,081 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_2 [2022-07-20 00:46:06,082 INFO L130 BoogieDeclarations]: Found specification of procedure blk_start_queue [2022-07-20 00:46:06,083 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_start_queue [2022-07-20 00:46:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 00:46:06,084 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 00:46:06,084 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-07-20 00:46:06,084 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-07-20 00:46:06,085 INFO L130 BoogieDeclarations]: Found specification of procedure msb_bd_getgeo [2022-07-20 00:46:06,085 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_bd_getgeo [2022-07-20 00:46:06,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 00:46:06,086 INFO L130 BoogieDeclarations]: Found specification of procedure msb_remove [2022-07-20 00:46:06,089 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_remove [2022-07-20 00:46:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 00:46:06,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 00:46:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-07-20 00:46:06,090 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-07-20 00:46:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_bad [2022-07-20 00:46:06,090 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_bad [2022-07-20 00:46:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 00:46:06,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 00:46:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 00:46:06,090 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2022-07-20 00:46:06,091 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2022-07-20 00:46:06,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 00:46:06,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 00:46:06,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 00:46:06,091 INFO L130 BoogieDeclarations]: Found specification of procedure sg_nents [2022-07-20 00:46:06,091 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_nents [2022-07-20 00:46:06,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 00:46:06,091 INFO L130 BoogieDeclarations]: Found specification of procedure msb_read_page [2022-07-20 00:46:06,091 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_read_page [2022-07-20 00:46:06,091 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2022-07-20 00:46:06,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2022-07-20 00:46:06,092 INFO L130 BoogieDeclarations]: Found specification of procedure sg_miter_stop [2022-07-20 00:46:06,092 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_miter_stop [2022-07-20 00:46:06,092 INFO L130 BoogieDeclarations]: Found specification of procedure msb_set_overwrite_flag [2022-07-20 00:46:06,092 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_set_overwrite_flag [2022-07-20 00:46:06,092 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_bytes [2022-07-20 00:46:06,092 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_bytes [2022-07-20 00:46:06,092 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-20 00:46:06,092 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-20 00:46:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure msb_disk_release [2022-07-20 00:46:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_disk_release [2022-07-20 00:46:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure msb_mark_block_used [2022-07-20 00:46:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_mark_block_used [2022-07-20 00:46:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure msb_cache_discard [2022-07-20 00:46:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_cache_discard [2022-07-20 00:46:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-20 00:46:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-20 00:46:06,093 INFO L130 BoogieDeclarations]: Found specification of procedure msb_start [2022-07-20 00:46:06,093 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_start [2022-07-20 00:46:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-20 00:46:06,094 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-20 00:46:06,094 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-07-20 00:46:06,133 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-07-20 00:46:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-07-20 00:46:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-07-20 00:46:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure msb_init_card [2022-07-20 00:46:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure msb_init_card [2022-07-20 00:46:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-07-20 00:46:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-07-20 00:46:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-20 00:46:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-20 00:46:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 00:46:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_one [2022-07-20 00:46:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_one [2022-07-20 00:46:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-20 00:46:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-20 00:46:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_msb_disk_lock [2022-07-20 00:46:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_msb_disk_lock [2022-07-20 00:46:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 00:46:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 00:46:06,588 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 00:46:06,590 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 00:46:06,780 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 00:46:08,538 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 00:46:08,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 00:46:08,559 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 00:46:08,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:46:08 BoogieIcfgContainer [2022-07-20 00:46:08,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 00:46:08,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 00:46:08,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 00:46:08,566 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 00:46:08,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:46:04" (1/3) ... [2022-07-20 00:46:08,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236933b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:46:08, skipping insertion in model container [2022-07-20 00:46:08,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:46:05" (2/3) ... [2022-07-20 00:46:08,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@236933b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:46:08, skipping insertion in model container [2022-07-20 00:46:08,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:46:08" (3/3) ... [2022-07-20 00:46:08,568 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--memstick--core--ms_block.ko-entry_point.cil.out.i [2022-07-20 00:46:08,578 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 00:46:08,579 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 00:46:08,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 00:46:08,648 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@1178ec39, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@671514b3 [2022-07-20 00:46:08,648 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 00:46:08,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 1468 states, 1036 states have (on average 1.3793436293436294) internal successors, (1429), 1080 states have internal predecessors, (1429), 343 states have call successors, (343), 88 states have call predecessors, (343), 87 states have return successors, (337), 331 states have call predecessors, (337), 337 states have call successors, (337) [2022-07-20 00:46:08,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-20 00:46:08,675 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:46:08,676 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:46:08,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:46:08,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:46:08,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1635477223, now seen corresponding path program 1 times [2022-07-20 00:46:08,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:46:08,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687190829] [2022-07-20 00:46:08,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:46:08,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:46:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:46:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:46:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:46:09,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:09,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:46:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:09,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:46:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-20 00:46:09,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:46:09,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687190829] [2022-07-20 00:46:09,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687190829] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:46:09,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:46:09,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 00:46:09,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666883728] [2022-07-20 00:46:09,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:46:09,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 00:46:09,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:46:09,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 00:46:09,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 00:46:09,334 INFO L87 Difference]: Start difference. First operand has 1468 states, 1036 states have (on average 1.3793436293436294) internal successors, (1429), 1080 states have internal predecessors, (1429), 343 states have call successors, (343), 88 states have call predecessors, (343), 87 states have return successors, (337), 331 states have call predecessors, (337), 337 states have call successors, (337) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:11,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:46:11,579 INFO L93 Difference]: Finished difference Result 3245 states and 4865 transitions. [2022-07-20 00:46:11,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 00:46:11,581 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-07-20 00:46:11,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:46:11,609 INFO L225 Difference]: With dead ends: 3245 [2022-07-20 00:46:11,609 INFO L226 Difference]: Without dead ends: 1755 [2022-07-20 00:46:11,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:46:11,628 INFO L413 NwaCegarLoop]: 1969 mSDtfsCounter, 1554 mSDsluCounter, 1103 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 1498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1599 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1498 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:46:11,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1599 Valid, 3072 Invalid, 2426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1498 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-20 00:46:11,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1755 states. [2022-07-20 00:46:11,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1755 to 1443. [2022-07-20 00:46:11,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1019 states have (on average 1.3631010794896958) internal successors, (1389), 1055 states have internal predecessors, (1389), 337 states have call successors, (337), 87 states have call predecessors, (337), 86 states have return successors, (328), 322 states have call predecessors, (328), 328 states have call successors, (328) [2022-07-20 00:46:11,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 2054 transitions. [2022-07-20 00:46:11,724 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 2054 transitions. Word has length 84 [2022-07-20 00:46:11,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:46:11,725 INFO L495 AbstractCegarLoop]: Abstraction has 1443 states and 2054 transitions. [2022-07-20 00:46:11,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:11,725 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 2054 transitions. [2022-07-20 00:46:11,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-20 00:46:11,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:46:11,728 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:46:11,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 00:46:11,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:46:11,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:46:11,729 INFO L85 PathProgramCache]: Analyzing trace with hash 985351915, now seen corresponding path program 1 times [2022-07-20 00:46:11,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:46:11,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041172561] [2022-07-20 00:46:11,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:46:11,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:46:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:46:11,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:46:11,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:11,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:46:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:46:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:46:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-20 00:46:11,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:46:11,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041172561] [2022-07-20 00:46:11,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041172561] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:46:11,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:46:11,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:46:11,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529696109] [2022-07-20 00:46:11,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:46:11,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:46:11,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:46:11,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:46:11,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:46:11,938 INFO L87 Difference]: Start difference. First operand 1443 states and 2054 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-20 00:46:14,397 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 [] [2022-07-20 00:46:19,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:46:19,255 INFO L93 Difference]: Finished difference Result 4870 states and 7168 transitions. [2022-07-20 00:46:19,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:46:19,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 84 [2022-07-20 00:46:19,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:46:19,275 INFO L225 Difference]: With dead ends: 4870 [2022-07-20 00:46:19,275 INFO L226 Difference]: Without dead ends: 3447 [2022-07-20 00:46:19,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:46:19,281 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 3727 mSDsluCounter, 4156 mSDsCounter, 0 mSdLazyCounter, 3787 mSolverCounterSat, 2174 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3992 SdHoareTripleChecker+Valid, 6395 SdHoareTripleChecker+Invalid, 5962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2174 IncrementalHoareTripleChecker+Valid, 3787 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:46:19,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3992 Valid, 6395 Invalid, 5962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2174 Valid, 3787 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-07-20 00:46:19,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2022-07-20 00:46:19,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 2804. [2022-07-20 00:46:19,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 1982 states have (on average 1.3647830474268416) internal successors, (2705), 2050 states have internal predecessors, (2705), 650 states have call successors, (650), 171 states have call predecessors, (650), 171 states have return successors, (647), 626 states have call predecessors, (647), 641 states have call successors, (647) [2022-07-20 00:46:19,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 4002 transitions. [2022-07-20 00:46:19,367 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 4002 transitions. Word has length 84 [2022-07-20 00:46:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:46:19,368 INFO L495 AbstractCegarLoop]: Abstraction has 2804 states and 4002 transitions. [2022-07-20 00:46:19,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-07-20 00:46:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 4002 transitions. [2022-07-20 00:46:19,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-20 00:46:19,373 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:46:19,373 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:46:19,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 00:46:19,373 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:46:19,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:46:19,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1154429741, now seen corresponding path program 1 times [2022-07-20 00:46:19,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:46:19,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46657751] [2022-07-20 00:46:19,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:46:19,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:46:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:46:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:46:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:19,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:46:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:46:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:19,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:46:19,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:19,632 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-20 00:46:19,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:46:19,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46657751] [2022-07-20 00:46:19,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46657751] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:46:19,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:46:19,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:46:19,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654355222] [2022-07-20 00:46:19,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:46:19,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:46:19,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:46:19,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:46:19,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:46:19,636 INFO L87 Difference]: Start difference. First operand 2804 states and 4002 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:22,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:46:22,722 INFO L93 Difference]: Finished difference Result 3423 states and 5109 transitions. [2022-07-20 00:46:22,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:46:22,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-07-20 00:46:22,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:46:22,741 INFO L225 Difference]: With dead ends: 3423 [2022-07-20 00:46:22,741 INFO L226 Difference]: Without dead ends: 3420 [2022-07-20 00:46:22,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:46:22,746 INFO L413 NwaCegarLoop]: 1908 mSDtfsCounter, 2912 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 1273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3133 SdHoareTripleChecker+Valid, 4495 SdHoareTripleChecker+Invalid, 3329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1273 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-20 00:46:22,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3133 Valid, 4495 Invalid, 3329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1273 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-20 00:46:22,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3420 states. [2022-07-20 00:46:22,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3420 to 2803. [2022-07-20 00:46:22,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 1982 states have (on average 1.3642785065590313) internal successors, (2704), 2049 states have internal predecessors, (2704), 649 states have call successors, (649), 171 states have call predecessors, (649), 171 states have return successors, (647), 626 states have call predecessors, (647), 641 states have call successors, (647) [2022-07-20 00:46:22,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 4000 transitions. [2022-07-20 00:46:22,826 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 4000 transitions. Word has length 87 [2022-07-20 00:46:22,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:46:22,826 INFO L495 AbstractCegarLoop]: Abstraction has 2803 states and 4000 transitions. [2022-07-20 00:46:22,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:22,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 4000 transitions. [2022-07-20 00:46:22,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-20 00:46:22,828 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:46:22,828 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:46:22,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 00:46:22,828 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:46:22,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:46:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1427090163, now seen corresponding path program 1 times [2022-07-20 00:46:22,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:46:22,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557697223] [2022-07-20 00:46:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:46:22,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:46:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:46:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:22,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:22,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:22,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:46:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:22,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:46:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:46:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:23,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:46:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:23,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:23,054 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-20 00:46:23,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:46:23,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557697223] [2022-07-20 00:46:23,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557697223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:46:23,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:46:23,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:46:23,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26022602] [2022-07-20 00:46:23,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:46:23,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:46:23,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:46:23,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:46:23,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:46:23,058 INFO L87 Difference]: Start difference. First operand 2803 states and 4000 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:46:25,889 INFO L93 Difference]: Finished difference Result 3422 states and 5107 transitions. [2022-07-20 00:46:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:46:25,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2022-07-20 00:46:25,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:46:25,907 INFO L225 Difference]: With dead ends: 3422 [2022-07-20 00:46:25,907 INFO L226 Difference]: Without dead ends: 3419 [2022-07-20 00:46:25,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:46:25,912 INFO L413 NwaCegarLoop]: 1901 mSDtfsCounter, 3174 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 1524 mSolverCounterSat, 1359 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3393 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1359 IncrementalHoareTripleChecker+Valid, 1524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-20 00:46:25,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3393 Valid, 3612 Invalid, 2883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1359 Valid, 1524 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-20 00:46:25,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3419 states. [2022-07-20 00:46:25,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3419 to 2802. [2022-07-20 00:46:25,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 1982 states have (on average 1.363773965691221) internal successors, (2703), 2048 states have internal predecessors, (2703), 648 states have call successors, (648), 171 states have call predecessors, (648), 171 states have return successors, (647), 626 states have call predecessors, (647), 641 states have call successors, (647) [2022-07-20 00:46:26,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3998 transitions. [2022-07-20 00:46:26,005 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3998 transitions. Word has length 88 [2022-07-20 00:46:26,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:46:26,006 INFO L495 AbstractCegarLoop]: Abstraction has 2802 states and 3998 transitions. [2022-07-20 00:46:26,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3998 transitions. [2022-07-20 00:46:26,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-20 00:46:26,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:46:26,011 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:46:26,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 00:46:26,011 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:46:26,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:46:26,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1289633520, now seen corresponding path program 1 times [2022-07-20 00:46:26,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:46:26,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085424972] [2022-07-20 00:46:26,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:46:26,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:46:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:46:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:46:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:26,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:26,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:46:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:26,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:46:26,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:46:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:26,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-20 00:46:26,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:46:26,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085424972] [2022-07-20 00:46:26,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085424972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:46:26,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:46:26,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:46:26,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796251879] [2022-07-20 00:46:26,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:46:26,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:46:26,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:46:26,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:46:26,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:46:26,162 INFO L87 Difference]: Start difference. First operand 2802 states and 3998 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:29,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:46:29,286 INFO L93 Difference]: Finished difference Result 4898 states and 7213 transitions. [2022-07-20 00:46:29,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:46:29,287 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 89 [2022-07-20 00:46:29,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:46:29,308 INFO L225 Difference]: With dead ends: 4898 [2022-07-20 00:46:29,309 INFO L226 Difference]: Without dead ends: 4894 [2022-07-20 00:46:29,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:46:29,311 INFO L413 NwaCegarLoop]: 2425 mSDtfsCounter, 3989 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 2093 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4227 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 3745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2093 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-20 00:46:29,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4227 Valid, 4331 Invalid, 3745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2093 Valid, 1652 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-20 00:46:29,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2022-07-20 00:46:29,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4056. [2022-07-20 00:46:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4056 states, 2862 states have (on average 1.353948287910552) internal successors, (3875), 2949 states have internal predecessors, (3875), 919 states have call successors, (919), 273 states have call predecessors, (919), 274 states have return successors, (922), 893 states have call predecessors, (922), 914 states have call successors, (922) [2022-07-20 00:46:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4056 states to 4056 states and 5716 transitions. [2022-07-20 00:46:29,428 INFO L78 Accepts]: Start accepts. Automaton has 4056 states and 5716 transitions. Word has length 89 [2022-07-20 00:46:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:46:29,428 INFO L495 AbstractCegarLoop]: Abstraction has 4056 states and 5716 transitions. [2022-07-20 00:46:29,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 4056 states and 5716 transitions. [2022-07-20 00:46:29,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-20 00:46:29,430 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:46:29,430 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:46:29,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 00:46:29,431 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:46:29,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:46:29,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1323449750, now seen corresponding path program 1 times [2022-07-20 00:46:29,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:46:29,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961619713] [2022-07-20 00:46:29,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:46:29,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:46:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:46:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:46:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:29,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:46:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:46:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:46:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:29,620 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-20 00:46:29,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:46:29,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961619713] [2022-07-20 00:46:29,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961619713] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:46:29,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:46:29,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:46:29,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730720231] [2022-07-20 00:46:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:46:29,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:46:29,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:46:29,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:46:29,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:46:29,623 INFO L87 Difference]: Start difference. First operand 4056 states and 5716 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:32,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:46:32,015 INFO L93 Difference]: Finished difference Result 4917 states and 7227 transitions. [2022-07-20 00:46:32,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:46:32,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 90 [2022-07-20 00:46:32,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:46:32,036 INFO L225 Difference]: With dead ends: 4917 [2022-07-20 00:46:32,036 INFO L226 Difference]: Without dead ends: 4913 [2022-07-20 00:46:32,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:46:32,039 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 3459 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 1816 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 3002 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1816 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-20 00:46:32,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3662 Valid, 3002 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1816 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-20 00:46:32,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4913 states. [2022-07-20 00:46:32,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4913 to 4088. [2022-07-20 00:46:32,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4088 states, 2882 states have (on average 1.3504510756419152) internal successors, (3892), 2967 states have internal predecessors, (3892), 925 states have call successors, (925), 279 states have call predecessors, (925), 280 states have return successors, (930), 901 states have call predecessors, (930), 922 states have call successors, (930) [2022-07-20 00:46:32,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4088 states to 4088 states and 5747 transitions. [2022-07-20 00:46:32,161 INFO L78 Accepts]: Start accepts. Automaton has 4088 states and 5747 transitions. Word has length 90 [2022-07-20 00:46:32,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:46:32,162 INFO L495 AbstractCegarLoop]: Abstraction has 4088 states and 5747 transitions. [2022-07-20 00:46:32,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 4088 states and 5747 transitions. [2022-07-20 00:46:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-20 00:46:32,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:46:32,163 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:46:32,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 00:46:32,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:46:32,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:46:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1923209549, now seen corresponding path program 1 times [2022-07-20 00:46:32,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:46:32,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696209743] [2022-07-20 00:46:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:46:32,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:46:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:46:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:46:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:46:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:46:32,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:32,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:46:32,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:32,335 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-20 00:46:32,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:46:32,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696209743] [2022-07-20 00:46:32,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696209743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:46:32,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:46:32,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 00:46:32,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565531436] [2022-07-20 00:46:32,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:46:32,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 00:46:32,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:46:32,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 00:46:32,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 00:46:32,337 INFO L87 Difference]: Start difference. First operand 4088 states and 5747 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:35,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:46:35,576 INFO L93 Difference]: Finished difference Result 4913 states and 7221 transitions. [2022-07-20 00:46:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 00:46:35,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 91 [2022-07-20 00:46:35,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:46:35,599 INFO L225 Difference]: With dead ends: 4913 [2022-07-20 00:46:35,600 INFO L226 Difference]: Without dead ends: 4897 [2022-07-20 00:46:35,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:46:35,602 INFO L413 NwaCegarLoop]: 1886 mSDtfsCounter, 2900 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 1266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3126 SdHoareTripleChecker+Valid, 4451 SdHoareTripleChecker+Invalid, 3309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1266 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:46:35,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3126 Valid, 4451 Invalid, 3309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1266 Valid, 2043 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-20 00:46:35,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4897 states. [2022-07-20 00:46:35,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4897 to 4074. [2022-07-20 00:46:35,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4074 states, 2871 states have (on average 1.350400557297109) internal successors, (3877), 2954 states have internal predecessors, (3877), 922 states have call successors, (922), 279 states have call predecessors, (922), 280 states have return successors, (928), 900 states have call predecessors, (928), 920 states have call successors, (928) [2022-07-20 00:46:35,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4074 states to 4074 states and 5727 transitions. [2022-07-20 00:46:35,783 INFO L78 Accepts]: Start accepts. Automaton has 4074 states and 5727 transitions. Word has length 91 [2022-07-20 00:46:35,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:46:35,783 INFO L495 AbstractCegarLoop]: Abstraction has 4074 states and 5727 transitions. [2022-07-20 00:46:35,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-20 00:46:35,784 INFO L276 IsEmpty]: Start isEmpty. Operand 4074 states and 5727 transitions. [2022-07-20 00:46:35,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-07-20 00:46:35,788 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:46:35,788 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:46:35,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 00:46:35,789 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:46:35,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:46:35,789 INFO L85 PathProgramCache]: Analyzing trace with hash 172474476, now seen corresponding path program 1 times [2022-07-20 00:46:35,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:46:35,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056202333] [2022-07-20 00:46:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:46:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:46:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:46:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:35,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:35,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:46:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:46:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:46:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:46:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:35,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:46:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:46:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-20 00:46:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 00:46:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:35,980 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-20 00:46:35,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:46:35,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056202333] [2022-07-20 00:46:35,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056202333] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:46:35,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:46:35,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 00:46:35,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759101412] [2022-07-20 00:46:35,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:46:35,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 00:46:35,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:46:35,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 00:46:35,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-20 00:46:35,983 INFO L87 Difference]: Start difference. First operand 4074 states and 5727 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 00:46:42,688 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:46:44,757 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:46:47,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:46:47,890 INFO L93 Difference]: Finished difference Result 11404 states and 16503 transitions. [2022-07-20 00:46:47,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-20 00:46:47,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 144 [2022-07-20 00:46:47,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:46:47,936 INFO L225 Difference]: With dead ends: 11404 [2022-07-20 00:46:47,936 INFO L226 Difference]: Without dead ends: 7350 [2022-07-20 00:46:47,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-07-20 00:46:47,957 INFO L413 NwaCegarLoop]: 1681 mSDtfsCounter, 7585 mSDsluCounter, 897 mSDsCounter, 0 mSdLazyCounter, 6945 mSolverCounterSat, 5304 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7909 SdHoareTripleChecker+Valid, 2578 SdHoareTripleChecker+Invalid, 12251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5304 IncrementalHoareTripleChecker+Valid, 6945 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:46:47,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7909 Valid, 2578 Invalid, 12251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5304 Valid, 6945 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2022-07-20 00:46:47,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7350 states. [2022-07-20 00:46:48,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7350 to 6104. [2022-07-20 00:46:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6104 states, 4306 states have (on average 1.351137947050627) internal successors, (5818), 4429 states have internal predecessors, (5818), 1377 states have call successors, (1377), 419 states have call predecessors, (1377), 420 states have return successors, (1383), 1345 states have call predecessors, (1383), 1375 states have call successors, (1383) [2022-07-20 00:46:48,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6104 states to 6104 states and 8578 transitions. [2022-07-20 00:46:48,233 INFO L78 Accepts]: Start accepts. Automaton has 6104 states and 8578 transitions. Word has length 144 [2022-07-20 00:46:48,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:46:48,233 INFO L495 AbstractCegarLoop]: Abstraction has 6104 states and 8578 transitions. [2022-07-20 00:46:48,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (15), 6 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 00:46:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6104 states and 8578 transitions. [2022-07-20 00:46:48,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-20 00:46:48,238 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:46:48,238 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:46:48,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-20 00:46:48,239 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:46:48,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:46:48,239 INFO L85 PathProgramCache]: Analyzing trace with hash 491187115, now seen corresponding path program 1 times [2022-07-20 00:46:48,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:46:48,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889932993] [2022-07-20 00:46:48,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:46:48,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:46:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:46:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:46:48,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:46:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:46:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:46:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:46:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:48,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:46:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:46:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:46:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-20 00:46:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 00:46:48,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:46:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-07-20 00:46:48,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:46:48,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889932993] [2022-07-20 00:46:48,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889932993] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:46:48,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:46:48,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:46:48,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534473262] [2022-07-20 00:46:48,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:46:48,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:46:48,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:46:48,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:46:48,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:46:48,538 INFO L87 Difference]: Start difference. First operand 6104 states and 8578 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 00:46:53,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:46:56,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:46:58,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:00,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:01,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:47:01,974 INFO L93 Difference]: Finished difference Result 13353 states and 19612 transitions. [2022-07-20 00:47:01,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 00:47:01,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 145 [2022-07-20 00:47:01,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:47:02,012 INFO L225 Difference]: With dead ends: 13353 [2022-07-20 00:47:02,012 INFO L226 Difference]: Without dead ends: 7269 [2022-07-20 00:47:02,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-20 00:47:02,040 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 3659 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 4103 mSolverCounterSat, 2634 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3733 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 6741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2634 IncrementalHoareTripleChecker+Valid, 4103 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:47:02,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3733 Valid, 2457 Invalid, 6741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2634 Valid, 4103 Invalid, 4 Unknown, 0 Unchecked, 13.0s Time] [2022-07-20 00:47:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7269 states. [2022-07-20 00:47:02,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7269 to 6068. [2022-07-20 00:47:02,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6068 states, 4270 states have (on average 1.2826697892271663) internal successors, (5477), 4393 states have internal predecessors, (5477), 1377 states have call successors, (1377), 419 states have call predecessors, (1377), 420 states have return successors, (1383), 1345 states have call predecessors, (1383), 1375 states have call successors, (1383) [2022-07-20 00:47:02,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6068 states to 6068 states and 8237 transitions. [2022-07-20 00:47:02,241 INFO L78 Accepts]: Start accepts. Automaton has 6068 states and 8237 transitions. Word has length 145 [2022-07-20 00:47:02,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:47:02,241 INFO L495 AbstractCegarLoop]: Abstraction has 6068 states and 8237 transitions. [2022-07-20 00:47:02,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-20 00:47:02,242 INFO L276 IsEmpty]: Start isEmpty. Operand 6068 states and 8237 transitions. [2022-07-20 00:47:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-20 00:47:02,245 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:47:02,245 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:47:02,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-20 00:47:02,246 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:47:02,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:47:02,246 INFO L85 PathProgramCache]: Analyzing trace with hash 913888941, now seen corresponding path program 1 times [2022-07-20 00:47:02,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:47:02,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183644963] [2022-07-20 00:47:02,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:47:02,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:47:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:47:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:02,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:02,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:47:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:47:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:47:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:47:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:47:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:47:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-20 00:47:02,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-20 00:47:02,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:02,464 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-07-20 00:47:02,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:47:02,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183644963] [2022-07-20 00:47:02,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183644963] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:47:02,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:47:02,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-20 00:47:02,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679915131] [2022-07-20 00:47:02,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:47:02,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-20 00:47:02,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:47:02,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-20 00:47:02,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-20 00:47:02,466 INFO L87 Difference]: Start difference. First operand 6068 states and 8237 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 00:47:08,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:10,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:13,096 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:15,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:17,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:18,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:47:18,451 INFO L93 Difference]: Finished difference Result 7271 states and 10343 transitions. [2022-07-20 00:47:18,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-20 00:47:18,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 145 [2022-07-20 00:47:18,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:47:18,472 INFO L225 Difference]: With dead ends: 7271 [2022-07-20 00:47:18,473 INFO L226 Difference]: Without dead ends: 7268 [2022-07-20 00:47:18,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:47:18,475 INFO L413 NwaCegarLoop]: 1597 mSDtfsCounter, 2142 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 5768 mSolverCounterSat, 1577 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2390 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 7350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1577 IncrementalHoareTripleChecker+Valid, 5768 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-07-20 00:47:18,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2390 Valid, 2857 Invalid, 7350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1577 Valid, 5768 Invalid, 5 Unknown, 0 Unchecked, 15.6s Time] [2022-07-20 00:47:18,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7268 states. [2022-07-20 00:47:18,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7268 to 6067. [2022-07-20 00:47:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6067 states, 4270 states have (on average 1.2819672131147541) internal successors, (5474), 4392 states have internal predecessors, (5474), 1376 states have call successors, (1376), 419 states have call predecessors, (1376), 420 states have return successors, (1383), 1345 states have call predecessors, (1383), 1375 states have call successors, (1383) [2022-07-20 00:47:18,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6067 states to 6067 states and 8233 transitions. [2022-07-20 00:47:18,674 INFO L78 Accepts]: Start accepts. Automaton has 6067 states and 8233 transitions. Word has length 145 [2022-07-20 00:47:18,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:47:18,675 INFO L495 AbstractCegarLoop]: Abstraction has 6067 states and 8233 transitions. [2022-07-20 00:47:18,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (14), 7 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-20 00:47:18,675 INFO L276 IsEmpty]: Start isEmpty. Operand 6067 states and 8233 transitions. [2022-07-20 00:47:18,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-20 00:47:18,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:47:18,680 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:47:18,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-20 00:47:18,681 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:47:18,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:47:18,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1737838048, now seen corresponding path program 1 times [2022-07-20 00:47:18,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:47:18,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824365805] [2022-07-20 00:47:18,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:47:18,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:47:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:47:18,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:18,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:18,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:47:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:18,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:47:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:47:18,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:47:18,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-20 00:47:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-20 00:47:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-20 00:47:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 00:47:18,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:18,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-20 00:47:18,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-20 00:47:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:47:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:47:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:47:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 00:47:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:18,893 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-07-20 00:47:18,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:47:18,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824365805] [2022-07-20 00:47:18,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824365805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:47:18,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:47:18,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:47:18,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518660761] [2022-07-20 00:47:18,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:47:18,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:47:18,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:47:18,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:47:18,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:47:18,895 INFO L87 Difference]: Start difference. First operand 6067 states and 8233 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 00:47:26,938 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 [] [2022-07-20 00:47:29,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:31,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:34,503 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 [] [2022-07-20 00:47:36,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:47:36,151 INFO L93 Difference]: Finished difference Result 16885 states and 23635 transitions. [2022-07-20 00:47:36,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-20 00:47:36,158 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 162 [2022-07-20 00:47:36,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:47:36,218 INFO L225 Difference]: With dead ends: 16885 [2022-07-20 00:47:36,218 INFO L226 Difference]: Without dead ends: 10838 [2022-07-20 00:47:36,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-07-20 00:47:36,238 INFO L413 NwaCegarLoop]: 1702 mSDtfsCounter, 5751 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 8346 mSolverCounterSat, 4254 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5985 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 12604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4254 IncrementalHoareTripleChecker+Valid, 8346 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:47:36,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5985 Valid, 3264 Invalid, 12604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4254 Valid, 8346 Invalid, 4 Unknown, 0 Unchecked, 16.4s Time] [2022-07-20 00:47:36,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10838 states. [2022-07-20 00:47:36,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10838 to 8453. [2022-07-20 00:47:36,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8453 states, 6019 states have (on average 1.2919089549759095) internal successors, (7776), 6182 states have internal predecessors, (7776), 1830 states have call successors, (1830), 601 states have call predecessors, (1830), 603 states have return successors, (1841), 1787 states have call predecessors, (1841), 1829 states have call successors, (1841) [2022-07-20 00:47:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8453 states to 8453 states and 11447 transitions. [2022-07-20 00:47:36,626 INFO L78 Accepts]: Start accepts. Automaton has 8453 states and 11447 transitions. Word has length 162 [2022-07-20 00:47:36,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:47:36,627 INFO L495 AbstractCegarLoop]: Abstraction has 8453 states and 11447 transitions. [2022-07-20 00:47:36,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 00:47:36,627 INFO L276 IsEmpty]: Start isEmpty. Operand 8453 states and 11447 transitions. [2022-07-20 00:47:36,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-20 00:47:36,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:47:36,643 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-20 00:47:36,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-20 00:47:36,644 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:47:36,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:47:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1075894051, now seen corresponding path program 1 times [2022-07-20 00:47:36,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:47:36,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258615244] [2022-07-20 00:47:36,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:47:36,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:47:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:47:36,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:47:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:47:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:47:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:47:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:47:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:47:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:47:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-20 00:47:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-20 00:47:36,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-20 00:47:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 00:47:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-20 00:47:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-20 00:47:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:47:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:47:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:47:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:47:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 00:47:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:47:36,949 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-07-20 00:47:36,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:47:36,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258615244] [2022-07-20 00:47:36,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258615244] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:47:36,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:47:36,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-20 00:47:36,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971847284] [2022-07-20 00:47:36,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:47:36,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-20 00:47:36,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:47:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-20 00:47:36,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-20 00:47:36,951 INFO L87 Difference]: Start difference. First operand 8453 states and 11447 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-20 00:47:41,036 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 [] [2022-07-20 00:47:43,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:49,852 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:51,944 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:54,037 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:47:57,629 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 [] [2022-07-20 00:48:00,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:48:00,187 INFO L93 Difference]: Finished difference Result 22683 states and 31673 transitions. [2022-07-20 00:48:00,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-20 00:48:00,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 209 [2022-07-20 00:48:00,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:48:00,236 INFO L225 Difference]: With dead ends: 22683 [2022-07-20 00:48:00,237 INFO L226 Difference]: Without dead ends: 14260 [2022-07-20 00:48:00,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2022-07-20 00:48:00,259 INFO L413 NwaCegarLoop]: 2727 mSDtfsCounter, 5065 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 7639 mSolverCounterSat, 4549 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5324 SdHoareTripleChecker+Valid, 3873 SdHoareTripleChecker+Invalid, 12194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4549 IncrementalHoareTripleChecker+Valid, 7639 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:48:00,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5324 Valid, 3873 Invalid, 12194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4549 Valid, 7639 Invalid, 6 Unknown, 0 Unchecked, 22.0s Time] [2022-07-20 00:48:00,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14260 states. [2022-07-20 00:48:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14260 to 11091. [2022-07-20 00:48:00,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11091 states, 7964 states have (on average 1.2987192365645404) internal successors, (10343), 8183 states have internal predecessors, (10343), 2318 states have call successors, (2318), 799 states have call predecessors, (2318), 808 states have return successors, (2374), 2257 states have call predecessors, (2374), 2317 states have call successors, (2374) [2022-07-20 00:48:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11091 states to 11091 states and 15035 transitions. [2022-07-20 00:48:00,864 INFO L78 Accepts]: Start accepts. Automaton has 11091 states and 15035 transitions. Word has length 209 [2022-07-20 00:48:00,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:48:00,865 INFO L495 AbstractCegarLoop]: Abstraction has 11091 states and 15035 transitions. [2022-07-20 00:48:00,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-20 00:48:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 11091 states and 15035 transitions. [2022-07-20 00:48:00,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-07-20 00:48:00,890 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:48:00,890 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:48:00,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-20 00:48:00,891 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:48:00,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:48:00,891 INFO L85 PathProgramCache]: Analyzing trace with hash 2005424117, now seen corresponding path program 1 times [2022-07-20 00:48:00,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:48:00,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260684700] [2022-07-20 00:48:00,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:48:00,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:48:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:00,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:48:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:48:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:48:01,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:48:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:48:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:48:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:48:01,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:01,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 00:48:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-20 00:48:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-20 00:48:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-20 00:48:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-20 00:48:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-20 00:48:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-20 00:48:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:48:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:48:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:48:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 00:48:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2022-07-20 00:48:01,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:48:01,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260684700] [2022-07-20 00:48:01,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260684700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:48:01,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:48:01,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-20 00:48:01,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457232811] [2022-07-20 00:48:01,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:48:01,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 00:48:01,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:48:01,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 00:48:01,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-20 00:48:01,168 INFO L87 Difference]: Start difference. First operand 11091 states and 15035 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 00:48:13,186 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 [] [2022-07-20 00:48:15,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:48:17,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:48:20,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:48:24,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:48:26,178 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:48:28,286 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:48:30,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:48:30,341 INFO L93 Difference]: Finished difference Result 30076 states and 42013 transitions. [2022-07-20 00:48:30,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 00:48:30,342 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 237 [2022-07-20 00:48:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:48:30,422 INFO L225 Difference]: With dead ends: 30076 [2022-07-20 00:48:30,422 INFO L226 Difference]: Without dead ends: 19015 [2022-07-20 00:48:30,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-07-20 00:48:30,457 INFO L413 NwaCegarLoop]: 2909 mSDtfsCounter, 4775 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 12800 mSolverCounterSat, 4368 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 5246 SdHoareTripleChecker+Invalid, 17175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4368 IncrementalHoareTripleChecker+Valid, 12800 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2022-07-20 00:48:30,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 5246 Invalid, 17175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4368 Valid, 12800 Invalid, 7 Unknown, 0 Unchecked, 27.4s Time] [2022-07-20 00:48:30,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19015 states. [2022-07-20 00:48:31,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19015 to 15000. [2022-07-20 00:48:31,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15000 states, 10786 states have (on average 1.2979788614871128) internal successors, (14000), 11087 states have internal predecessors, (14000), 3146 states have call successors, (3146), 1051 states have call predecessors, (3146), 1067 states have return successors, (3249), 3056 states have call predecessors, (3249), 3145 states have call successors, (3249) [2022-07-20 00:48:31,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15000 states to 15000 states and 20395 transitions. [2022-07-20 00:48:31,393 INFO L78 Accepts]: Start accepts. Automaton has 15000 states and 20395 transitions. Word has length 237 [2022-07-20 00:48:31,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:48:31,394 INFO L495 AbstractCegarLoop]: Abstraction has 15000 states and 20395 transitions. [2022-07-20 00:48:31,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (26), 8 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-20 00:48:31,394 INFO L276 IsEmpty]: Start isEmpty. Operand 15000 states and 20395 transitions. [2022-07-20 00:48:31,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-07-20 00:48:31,435 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:48:31,435 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:48:31,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-20 00:48:31,436 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:48:31,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:48:31,436 INFO L85 PathProgramCache]: Analyzing trace with hash -433931054, now seen corresponding path program 1 times [2022-07-20 00:48:31,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:48:31,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014480617] [2022-07-20 00:48:31,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:48:31,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:48:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:48:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:31,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:48:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:48:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:48:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:48:31,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:48:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:31,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:48:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 00:48:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:48:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 00:48:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 00:48:31,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-20 00:48:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:48:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:48:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:48:31,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-20 00:48:31,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:31,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 00:48:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 00:48:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-20 00:48:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 00:48:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-20 00:48:31,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-20 00:48:31,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-20 00:48:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-20 00:48:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-20 00:48:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:48:31,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:48:31,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:48:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 00:48:31,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:31,827 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-20 00:48:31,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:48:31,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014480617] [2022-07-20 00:48:31,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014480617] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 00:48:31,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152094723] [2022-07-20 00:48:31,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:48:31,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 00:48:31,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 00:48:31,848 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) [2022-07-20 00:48:31,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 00:48:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:32,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 2941 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-20 00:48:32,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 00:48:32,570 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-07-20 00:48:32,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 00:48:32,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152094723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:48:32,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 00:48:32,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-07-20 00:48:32,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477218690] [2022-07-20 00:48:32,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:48:32,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-20 00:48:32,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:48:32,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-20 00:48:32,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:48:32,573 INFO L87 Difference]: Start difference. First operand 15000 states and 20395 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 00:48:33,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:48:33,502 INFO L93 Difference]: Finished difference Result 32790 states and 44556 transitions. [2022-07-20 00:48:33,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-20 00:48:33,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 316 [2022-07-20 00:48:33,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:48:33,567 INFO L225 Difference]: With dead ends: 32790 [2022-07-20 00:48:33,567 INFO L226 Difference]: Without dead ends: 17820 [2022-07-20 00:48:33,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-07-20 00:48:33,702 INFO L413 NwaCegarLoop]: 2221 mSDtfsCounter, 1860 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1860 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 00:48:33,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1860 Valid, 4002 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 00:48:33,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17820 states. [2022-07-20 00:48:34,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17820 to 17820. [2022-07-20 00:48:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17820 states, 12808 states have (on average 1.299109931292942) internal successors, (16639), 13171 states have internal predecessors, (16639), 3722 states have call successors, (3722), 1272 states have call predecessors, (3722), 1289 states have return successors, (3829), 3619 states have call predecessors, (3829), 3721 states have call successors, (3829) [2022-07-20 00:48:34,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17820 states to 17820 states and 24190 transitions. [2022-07-20 00:48:34,686 INFO L78 Accepts]: Start accepts. Automaton has 17820 states and 24190 transitions. Word has length 316 [2022-07-20 00:48:34,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:48:34,687 INFO L495 AbstractCegarLoop]: Abstraction has 17820 states and 24190 transitions. [2022-07-20 00:48:34,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-07-20 00:48:34,687 INFO L276 IsEmpty]: Start isEmpty. Operand 17820 states and 24190 transitions. [2022-07-20 00:48:34,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-07-20 00:48:34,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:48:34,755 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:48:34,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-20 00:48:34,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-20 00:48:34,977 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:48:34,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:48:34,978 INFO L85 PathProgramCache]: Analyzing trace with hash -212847300, now seen corresponding path program 1 times [2022-07-20 00:48:34,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:48:34,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809825456] [2022-07-20 00:48:34,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:48:34,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:48:35,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:48:35,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:48:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:48:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:48:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:48:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:48:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:35,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:48:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 00:48:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:48:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 00:48:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 00:48:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-20 00:48:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:48:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:48:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:48:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-20 00:48:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:48:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 00:48:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 00:48:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-20 00:48:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-20 00:48:35,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:48:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 00:48:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 00:48:35,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 00:48:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-20 00:48:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-20 00:48:35,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-20 00:48:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-20 00:48:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-07-20 00:48:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-07-20 00:48:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2022-07-20 00:48:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-20 00:48:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-20 00:48:35,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:48:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:48:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:48:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:48:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 00:48:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:48:35,693 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-20 00:48:35,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:48:35,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809825456] [2022-07-20 00:48:35,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809825456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:48:35,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:48:35,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-20 00:48:35,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015782253] [2022-07-20 00:48:35,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:48:35,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-20 00:48:35,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:48:35,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-20 00:48:35,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-07-20 00:48:35,698 INFO L87 Difference]: Start difference. First operand 17820 states and 24190 transitions. Second operand has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2022-07-20 00:48:52,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:48:56,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:48:59,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:49:04,826 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:49:06,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:49:09,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:49:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 00:49:29,853 INFO L93 Difference]: Finished difference Result 103023 states and 154921 transitions. [2022-07-20 00:49:29,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-07-20 00:49:29,854 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) Word has length 382 [2022-07-20 00:49:29,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 00:49:30,638 INFO L225 Difference]: With dead ends: 103023 [2022-07-20 00:49:30,638 INFO L226 Difference]: Without dead ends: 85233 [2022-07-20 00:49:30,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 987 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=680, Invalid=2512, Unknown=0, NotChecked=0, Total=3192 [2022-07-20 00:49:30,770 INFO L413 NwaCegarLoop]: 3240 mSDtfsCounter, 13076 mSDsluCounter, 2195 mSDsCounter, 0 mSdLazyCounter, 29494 mSolverCounterSat, 12740 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13256 SdHoareTripleChecker+Valid, 5435 SdHoareTripleChecker+Invalid, 42240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12740 IncrementalHoareTripleChecker+Valid, 29494 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.7s IncrementalHoareTripleChecker+Time [2022-07-20 00:49:30,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13256 Valid, 5435 Invalid, 42240 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12740 Valid, 29494 Invalid, 6 Unknown, 0 Unchecked, 45.7s Time] [2022-07-20 00:49:30,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85233 states. [2022-07-20 00:49:35,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85233 to 60595. [2022-07-20 00:49:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60595 states, 43426 states have (on average 1.304379864597246) internal successors, (56644), 44812 states have internal predecessors, (56644), 13250 states have call successors, (13250), 3513 states have call predecessors, (13250), 3918 states have return successors, (15976), 13169 states have call predecessors, (15976), 13249 states have call successors, (15976) [2022-07-20 00:49:35,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60595 states to 60595 states and 85870 transitions. [2022-07-20 00:49:35,793 INFO L78 Accepts]: Start accepts. Automaton has 60595 states and 85870 transitions. Word has length 382 [2022-07-20 00:49:35,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 00:49:35,794 INFO L495 AbstractCegarLoop]: Abstraction has 60595 states and 85870 transitions. [2022-07-20 00:49:35,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.0) internal successors, (176), 5 states have internal predecessors, (176), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2022-07-20 00:49:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand 60595 states and 85870 transitions. [2022-07-20 00:49:35,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-07-20 00:49:35,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 00:49:35,944 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 00:49:35,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-20 00:49:35,945 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 00:49:35,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 00:49:35,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1124108198, now seen corresponding path program 1 times [2022-07-20 00:49:35,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 00:49:35,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597026739] [2022-07-20 00:49:35,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 00:49:35,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 00:49:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:49:36,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:49:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 00:49:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:49:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-20 00:49:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-20 00:49:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-20 00:49:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 00:49:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:49:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-20 00:49:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:49:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-20 00:49:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 00:49:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-20 00:49:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-20 00:49:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-20 00:49:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 00:49:36,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 00:49:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-20 00:49:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-20 00:49:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 00:49:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-20 00:49:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 00:49:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-20 00:49:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-20 00:49:36,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:49:36,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-20 00:49:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-20 00:49:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-20 00:49:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-20 00:49:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-20 00:49:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-20 00:49:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-20 00:49:36,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-07-20 00:49:36,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2022-07-20 00:49:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-20 00:49:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-20 00:49:36,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-07-20 00:49:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 00:49:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-20 00:49:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-20 00:49:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-20 00:49:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-20 00:49:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 00:49:36,769 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-20 00:49:36,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 00:49:36,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597026739] [2022-07-20 00:49:36,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597026739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 00:49:36,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 00:49:36,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-20 00:49:36,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959122170] [2022-07-20 00:49:36,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 00:49:36,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-20 00:49:36,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 00:49:36,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-20 00:49:36,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-07-20 00:49:36,771 INFO L87 Difference]: Start difference. First operand 60595 states and 85870 transitions. Second operand has 16 states, 16 states have (on average 11.0625) internal successors, (177), 5 states have internal predecessors, (177), 5 states have call successors, (49), 13 states have call predecessors, (49), 3 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2022-07-20 00:49:55,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:49:57,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:50:01,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:50:03,820 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:50:11,197 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:50:15,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:50:17,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 00:50:19,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-07-20 00:50:23,092 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 []