./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--md--dm-raid.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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--md--dm-raid.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 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 13:38:57,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 13:38:57,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 13:38:58,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 13:38:58,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 13:38:58,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 13:38:58,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 13:38:58,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 13:38:58,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 13:38:58,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 13:38:58,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 13:38:58,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 13:38:58,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 13:38:58,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 13:38:58,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 13:38:58,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 13:38:58,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 13:38:58,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 13:38:58,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 13:38:58,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 13:38:58,039 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 13:38:58,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 13:38:58,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 13:38:58,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 13:38:58,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 13:38:58,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 13:38:58,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 13:38:58,046 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 13:38:58,047 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 13:38:58,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 13:38:58,048 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 13:38:58,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 13:38:58,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 13:38:58,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 13:38:58,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 13:38:58,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 13:38:58,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 13:38:58,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 13:38:58,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 13:38:58,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 13:38:58,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 13:38:58,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 13:38:58,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 13:38:58,072 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 13:38:58,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 13:38:58,073 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 13:38:58,073 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 13:38:58,073 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 13:38:58,075 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 13:38:58,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 13:38:58,075 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 13:38:58,076 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 13:38:58,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 13:38:58,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 13:38:58,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 13:38:58,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 13:38:58,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 13:38:58,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 13:38:58,077 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 13:38:58,077 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 13:38:58,077 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 13:38:58,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 13:38:58,079 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 13:38:58,079 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 13:38:58,079 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:38:58,079 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 13:38:58,080 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 13:38:58,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 13:38:58,080 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 13:38:58,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 13:38:58,080 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 13:38:58,080 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 13:38:58,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 13:38:58,081 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad [2022-07-12 13:38:58,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 13:38:58,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 13:38:58,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 13:38:58,296 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 13:38:58,296 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 13:38:58,298 INFO L432 ainManager$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--md--dm-raid.ko-entry_point.cil.out.i [2022-07-12 13:38:58,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf4fe27f/cb47b55208d34ae7bc721f9d7ce872f0/FLAG8bbc96a3a [2022-07-12 13:38:58,957 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 13:38:58,958 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--md--dm-raid.ko-entry_point.cil.out.i [2022-07-12 13:38:58,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf4fe27f/cb47b55208d34ae7bc721f9d7ce872f0/FLAG8bbc96a3a [2022-07-12 13:38:59,322 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdf4fe27f/cb47b55208d34ae7bc721f9d7ce872f0 [2022-07-12 13:38:59,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 13:38:59,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 13:38:59,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 13:38:59,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 13:38:59,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 13:38:59,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:38:59" (1/1) ... [2022-07-12 13:38:59,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77776874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:38:59, skipping insertion in model container [2022-07-12 13:38:59,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 01:38:59" (1/1) ... [2022-07-12 13:38:59,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 13:38:59,410 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 13:39:00,366 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--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2022-07-12 13:39:00,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:39:00,459 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 13:39:00,691 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--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2022-07-12 13:39:00,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 13:39:00,758 INFO L208 MainTranslator]: Completed translation [2022-07-12 13:39:00,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00 WrapperNode [2022-07-12 13:39:00,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 13:39:00,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 13:39:00,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 13:39:00,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 13:39:00,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:00,821 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:00,913 INFO L137 Inliner]: procedures = 221, calls = 1591, calls flagged for inlining = 84, calls inlined = 76, statements flattened = 4452 [2022-07-12 13:39:00,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 13:39:00,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 13:39:00,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 13:39:00,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 13:39:00,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:00,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:00,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:00,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:01,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:01,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:01,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:01,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 13:39:01,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 13:39:01,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 13:39:01,116 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 13:39:01,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (1/1) ... [2022-07-12 13:39:01,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 13:39:01,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:39:01,149 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) [2022-07-12 13:39:01,168 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 [2022-07-12 13:39:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2022-07-12 13:39:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2022-07-12 13:39:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-07-12 13:39:01,179 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-07-12 13:39:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-12 13:39:01,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-12 13:39:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-12 13:39:01,179 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-12 13:39:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-12 13:39:01,179 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-12 13:39:01,179 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2022-07-12 13:39:01,180 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2022-07-12 13:39:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 13:39:01,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 13:39:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2022-07-12 13:39:01,180 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2022-07-12 13:39:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2022-07-12 13:39:01,180 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2022-07-12 13:39:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 13:39:01,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 13:39:01,181 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-12 13:39:01,181 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-12 13:39:01,181 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2022-07-12 13:39:01,181 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2022-07-12 13:39:01,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-12 13:39:01,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-12 13:39:01,181 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-12 13:39:01,181 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-12 13:39:01,182 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2022-07-12 13:39:01,182 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2022-07-12 13:39:01,182 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 13:39:01,182 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 13:39:01,182 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-12 13:39:01,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-12 13:39:01,182 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2022-07-12 13:39:01,182 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2022-07-12 13:39:01,183 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2022-07-12 13:39:01,183 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2022-07-12 13:39:01,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 13:39:01,183 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-12 13:39:01,183 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-12 13:39:01,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 13:39:01,183 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2022-07-12 13:39:01,184 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2022-07-12 13:39:01,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-12 13:39:01,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-12 13:39:01,184 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2022-07-12 13:39:01,184 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2022-07-12 13:39:01,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 13:39:01,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 13:39:01,185 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2022-07-12 13:39:01,185 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2022-07-12 13:39:01,185 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2022-07-12 13:39:01,185 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2022-07-12 13:39:01,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2022-07-12 13:39:01,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2022-07-12 13:39:01,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 13:39:01,186 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2022-07-12 13:39:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2022-07-12 13:39:01,187 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-12 13:39:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-12 13:39:01,187 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2022-07-12 13:39:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2022-07-12 13:39:01,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 13:39:01,187 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-07-12 13:39:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-07-12 13:39:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-07-12 13:39:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-07-12 13:39:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-12 13:39:01,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-12 13:39:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 13:39:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2022-07-12 13:39:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2022-07-12 13:39:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-12 13:39:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-12 13:39:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2022-07-12 13:39:01,189 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2022-07-12 13:39:01,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 13:39:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 13:39:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-07-12 13:39:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-07-12 13:39:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2022-07-12 13:39:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2022-07-12 13:39:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2022-07-12 13:39:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2022-07-12 13:39:01,190 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-07-12 13:39:01,190 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-07-12 13:39:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 13:39:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-12 13:39:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-12 13:39:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-12 13:39:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 13:39:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2022-07-12 13:39:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2022-07-12 13:39:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2022-07-12 13:39:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2022-07-12 13:39:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 13:39:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 13:39:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 13:39:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 13:39:01,661 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 13:39:01,663 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 13:39:01,924 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-12 13:39:03,680 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 13:39:03,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 13:39:03,700 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 13:39:03,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:39:03 BoogieIcfgContainer [2022-07-12 13:39:03,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 13:39:03,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 13:39:03,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 13:39:03,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 13:39:03,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 01:38:59" (1/3) ... [2022-07-12 13:39:03,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acc5562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:39:03, skipping insertion in model container [2022-07-12 13:39:03,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 01:39:00" (2/3) ... [2022-07-12 13:39:03,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acc5562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 01:39:03, skipping insertion in model container [2022-07-12 13:39:03,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 01:39:03" (3/3) ... [2022-07-12 13:39:03,715 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2022-07-12 13:39:03,731 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 13:39:03,732 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 13:39:03,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 13:39:03,800 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@10f9ca8d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4c187e5e [2022-07-12 13:39:03,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 13:39:03,806 INFO L276 IsEmpty]: Start isEmpty. Operand has 1151 states, 890 states have (on average 1.451685393258427) internal successors, (1292), 911 states have internal predecessors, (1292), 216 states have call successors, (216), 44 states have call predecessors, (216), 43 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) [2022-07-12 13:39:03,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-12 13:39:03,817 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:03,817 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:39:03,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:03,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:03,821 INFO L85 PathProgramCache]: Analyzing trace with hash 660622254, now seen corresponding path program 1 times [2022-07-12 13:39:03,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:03,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161384200] [2022-07-12 13:39:03,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:03,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:04,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:04,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:04,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:04,616 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-12 13:39:04,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:04,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161384200] [2022-07-12 13:39:04,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161384200] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:04,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:04,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 13:39:04,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368186194] [2022-07-12 13:39:04,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:04,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 13:39:04,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:04,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 13:39:04,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 13:39:04,651 INFO L87 Difference]: Start difference. First operand has 1151 states, 890 states have (on average 1.451685393258427) internal successors, (1292), 911 states have internal predecessors, (1292), 216 states have call successors, (216), 44 states have call predecessors, (216), 43 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:06,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:06,382 INFO L93 Difference]: Finished difference Result 2324 states and 3500 transitions. [2022-07-12 13:39:06,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 13:39:06,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 221 [2022-07-12 13:39:06,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:06,401 INFO L225 Difference]: With dead ends: 2324 [2022-07-12 13:39:06,401 INFO L226 Difference]: Without dead ends: 1166 [2022-07-12 13:39:06,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:39:06,412 INFO L413 NwaCegarLoop]: 1578 mSDtfsCounter, 1343 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 819 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 2249 SdHoareTripleChecker+Invalid, 1326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:06,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 2249 Invalid, 1326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-12 13:39:06,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2022-07-12 13:39:06,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1139. [2022-07-12 13:39:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 884 states have (on average 1.4457013574660633) internal successors, (1278), 899 states have internal predecessors, (1278), 212 states have call successors, (212), 43 states have call predecessors, (212), 42 states have return successors, (207), 203 states have call predecessors, (207), 207 states have call successors, (207) [2022-07-12 13:39:06,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1697 transitions. [2022-07-12 13:39:06,495 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1697 transitions. Word has length 221 [2022-07-12 13:39:06,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:06,496 INFO L495 AbstractCegarLoop]: Abstraction has 1139 states and 1697 transitions. [2022-07-12 13:39:06,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:06,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1697 transitions. [2022-07-12 13:39:06,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-07-12 13:39:06,505 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:06,505 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:39:06,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 13:39:06,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:06,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:06,508 INFO L85 PathProgramCache]: Analyzing trace with hash 859733406, now seen corresponding path program 1 times [2022-07-12 13:39:06,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:06,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407059573] [2022-07-12 13:39:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:06,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:06,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:06,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:06,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:06,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:06,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:06,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:06,902 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-12 13:39:06,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:06,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407059573] [2022-07-12 13:39:06,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407059573] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:06,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:06,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:39:06,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143613409] [2022-07-12 13:39:06,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:06,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:39:06,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:06,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:39:06,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:39:06,905 INFO L87 Difference]: Start difference. First operand 1139 states and 1697 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 13:39:08,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:39:11,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:11,646 INFO L93 Difference]: Finished difference Result 3363 states and 5041 transitions. [2022-07-12 13:39:11,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:39:11,647 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), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 221 [2022-07-12 13:39:11,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:11,663 INFO L225 Difference]: With dead ends: 3363 [2022-07-12 13:39:11,663 INFO L226 Difference]: Without dead ends: 2263 [2022-07-12 13:39:11,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:39:11,667 INFO L413 NwaCegarLoop]: 1703 mSDtfsCounter, 4040 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 1659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4169 SdHoareTripleChecker+Valid, 3361 SdHoareTripleChecker+Invalid, 3082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1659 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:11,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4169 Valid, 3361 Invalid, 3082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1659 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 13:39:11,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2022-07-12 13:39:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 2209. [2022-07-12 13:39:11,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2209 states, 1727 states have (on average 1.4522292993630572) internal successors, (2508), 1753 states have internal predecessors, (2508), 400 states have call successors, (400), 82 states have call predecessors, (400), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-07-12 13:39:11,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3303 transitions. [2022-07-12 13:39:11,760 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3303 transitions. Word has length 221 [2022-07-12 13:39:11,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:11,763 INFO L495 AbstractCegarLoop]: Abstraction has 2209 states and 3303 transitions. [2022-07-12 13:39:11,763 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), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 13:39:11,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3303 transitions. [2022-07-12 13:39:11,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-07-12 13:39:11,765 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:11,766 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:39:11,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 13:39:11,766 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:11,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:11,767 INFO L85 PathProgramCache]: Analyzing trace with hash 2140903287, now seen corresponding path program 1 times [2022-07-12 13:39:11,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:11,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129183384] [2022-07-12 13:39:11,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:11,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:11,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:11,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:12,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:12,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:12,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:12,127 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-12 13:39:12,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:12,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129183384] [2022-07-12 13:39:12,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129183384] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:12,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:12,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:39:12,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468298009] [2022-07-12 13:39:12,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:12,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:39:12,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:12,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:39:12,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:39:12,130 INFO L87 Difference]: Start difference. First operand 2209 states and 3303 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:13,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:13,878 INFO L93 Difference]: Finished difference Result 2262 states and 3394 transitions. [2022-07-12 13:39:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:39:13,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 224 [2022-07-12 13:39:13,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:13,888 INFO L225 Difference]: With dead ends: 2262 [2022-07-12 13:39:13,889 INFO L226 Difference]: Without dead ends: 2259 [2022-07-12 13:39:13,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:39:13,893 INFO L413 NwaCegarLoop]: 1554 mSDtfsCounter, 2770 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2897 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 919 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:13,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2897 Valid, 2210 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [919 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-12 13:39:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2022-07-12 13:39:13,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 2208. [2022-07-12 13:39:13,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2208 states, 1727 states have (on average 1.451650260567458) internal successors, (2507), 1752 states have internal predecessors, (2507), 399 states have call successors, (399), 82 states have call predecessors, (399), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-07-12 13:39:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2208 states to 2208 states and 3301 transitions. [2022-07-12 13:39:13,965 INFO L78 Accepts]: Start accepts. Automaton has 2208 states and 3301 transitions. Word has length 224 [2022-07-12 13:39:13,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:13,966 INFO L495 AbstractCegarLoop]: Abstraction has 2208 states and 3301 transitions. [2022-07-12 13:39:13,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:13,967 INFO L276 IsEmpty]: Start isEmpty. Operand 2208 states and 3301 transitions. [2022-07-12 13:39:13,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-12 13:39:13,969 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:13,969 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:39:13,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 13:39:13,970 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:13,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:13,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1943191272, now seen corresponding path program 1 times [2022-07-12 13:39:13,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:13,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138240196] [2022-07-12 13:39:13,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:13,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:14,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:14,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:14,239 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-12 13:39:14,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:14,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138240196] [2022-07-12 13:39:14,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138240196] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:14,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:14,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:39:14,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622252590] [2022-07-12 13:39:14,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:14,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:39:14,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:14,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:39:14,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:39:14,242 INFO L87 Difference]: Start difference. First operand 2208 states and 3301 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:17,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:17,111 INFO L93 Difference]: Finished difference Result 2261 states and 3392 transitions. [2022-07-12 13:39:17,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:39:17,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-07-12 13:39:17,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:17,120 INFO L225 Difference]: With dead ends: 2261 [2022-07-12 13:39:17,121 INFO L226 Difference]: Without dead ends: 2258 [2022-07-12 13:39:17,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:39:17,122 INFO L413 NwaCegarLoop]: 1552 mSDtfsCounter, 2319 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2446 SdHoareTripleChecker+Valid, 3384 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:17,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2446 Valid, 3384 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 13:39:17,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2022-07-12 13:39:17,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 2207. [2022-07-12 13:39:17,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1727 states have (on average 1.4510712217718587) internal successors, (2506), 1751 states have internal predecessors, (2506), 398 states have call successors, (398), 82 states have call predecessors, (398), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-07-12 13:39:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3299 transitions. [2022-07-12 13:39:17,175 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3299 transitions. Word has length 225 [2022-07-12 13:39:17,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:17,175 INFO L495 AbstractCegarLoop]: Abstraction has 2207 states and 3299 transitions. [2022-07-12 13:39:17,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:17,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3299 transitions. [2022-07-12 13:39:17,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-07-12 13:39:17,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:17,177 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:39:17,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 13:39:17,178 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:17,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:17,178 INFO L85 PathProgramCache]: Analyzing trace with hash 109090970, now seen corresponding path program 1 times [2022-07-12 13:39:17,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:17,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270501880] [2022-07-12 13:39:17,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:17,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:17,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:17,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:17,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:17,460 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-12 13:39:17,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:17,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270501880] [2022-07-12 13:39:17,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270501880] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:17,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:17,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:39:17,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725469782] [2022-07-12 13:39:17,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:17,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:39:17,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:17,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:39:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:39:17,463 INFO L87 Difference]: Start difference. First operand 2207 states and 3299 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:19,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:19,601 INFO L93 Difference]: Finished difference Result 2260 states and 3390 transitions. [2022-07-12 13:39:19,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:39:19,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 226 [2022-07-12 13:39:19,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:19,610 INFO L225 Difference]: With dead ends: 2260 [2022-07-12 13:39:19,610 INFO L226 Difference]: Without dead ends: 2257 [2022-07-12 13:39:19,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:39:19,614 INFO L413 NwaCegarLoop]: 1546 mSDtfsCounter, 2769 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 917 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 2202 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 917 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:19,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 2202 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [917 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-12 13:39:19,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2022-07-12 13:39:19,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2206. [2022-07-12 13:39:19,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2206 states, 1727 states have (on average 1.4504921829762594) internal successors, (2505), 1750 states have internal predecessors, (2505), 397 states have call successors, (397), 82 states have call predecessors, (397), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-07-12 13:39:19,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2206 states to 2206 states and 3297 transitions. [2022-07-12 13:39:19,675 INFO L78 Accepts]: Start accepts. Automaton has 2206 states and 3297 transitions. Word has length 226 [2022-07-12 13:39:19,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:19,678 INFO L495 AbstractCegarLoop]: Abstraction has 2206 states and 3297 transitions. [2022-07-12 13:39:19,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2206 states and 3297 transitions. [2022-07-12 13:39:19,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-07-12 13:39:19,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:19,680 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:39:19,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 13:39:19,680 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:19,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:19,681 INFO L85 PathProgramCache]: Analyzing trace with hash -913438677, now seen corresponding path program 1 times [2022-07-12 13:39:19,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:19,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453495000] [2022-07-12 13:39:19,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:19,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:19,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:19,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:19,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:19,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:19,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:19,979 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-12 13:39:19,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:19,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453495000] [2022-07-12 13:39:19,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453495000] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:19,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:19,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 13:39:19,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77629087] [2022-07-12 13:39:19,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:19,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 13:39:19,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:19,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 13:39:19,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-12 13:39:19,981 INFO L87 Difference]: Start difference. First operand 2206 states and 3297 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:25,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:25,352 INFO L93 Difference]: Finished difference Result 4438 states and 6670 transitions. [2022-07-12 13:39:25,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:39:25,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 227 [2022-07-12 13:39:25,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:25,370 INFO L225 Difference]: With dead ends: 4438 [2022-07-12 13:39:25,370 INFO L226 Difference]: Without dead ends: 4427 [2022-07-12 13:39:25,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:39:25,372 INFO L413 NwaCegarLoop]: 1689 mSDtfsCounter, 3168 mSDsluCounter, 2815 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 1134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 4504 SdHoareTripleChecker+Invalid, 3612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1134 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:25,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 4504 Invalid, 3612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1134 Valid, 2478 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-12 13:39:25,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4427 states. [2022-07-12 13:39:25,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4427 to 4328. [2022-07-12 13:39:25,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4328 states, 3400 states have (on average 1.455) internal successors, (4947), 3443 states have internal predecessors, (4947), 770 states have call successors, (770), 160 states have call predecessors, (770), 157 states have return successors, (768), 750 states have call predecessors, (768), 768 states have call successors, (768) [2022-07-12 13:39:25,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4328 states to 4328 states and 6485 transitions. [2022-07-12 13:39:25,498 INFO L78 Accepts]: Start accepts. Automaton has 4328 states and 6485 transitions. Word has length 227 [2022-07-12 13:39:25,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:25,498 INFO L495 AbstractCegarLoop]: Abstraction has 4328 states and 6485 transitions. [2022-07-12 13:39:25,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 13:39:25,499 INFO L276 IsEmpty]: Start isEmpty. Operand 4328 states and 6485 transitions. [2022-07-12 13:39:25,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-07-12 13:39:25,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:25,508 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 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] [2022-07-12 13:39:25,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 13:39:25,508 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:25,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:25,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1626368121, now seen corresponding path program 1 times [2022-07-12 13:39:25,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:25,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409148234] [2022-07-12 13:39:25,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:25,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:25,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:25,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:25,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:25,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-12 13:39:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-12 13:39:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-12 13:39:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-12 13:39:25,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:39:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-12 13:39:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-12 13:39:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-12 13:39:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2022-07-12 13:39:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:25,809 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2022-07-12 13:39:25,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:25,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409148234] [2022-07-12 13:39:25,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409148234] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:25,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:25,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:39:25,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738115417] [2022-07-12 13:39:25,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:25,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:39:25,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:25,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:39:25,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:39:25,812 INFO L87 Difference]: Start difference. First operand 4328 states and 6485 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 13:39:30,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:30,451 INFO L93 Difference]: Finished difference Result 8907 states and 13355 transitions. [2022-07-12 13:39:30,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 13:39:30,451 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 333 [2022-07-12 13:39:30,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:30,467 INFO L225 Difference]: With dead ends: 8907 [2022-07-12 13:39:30,468 INFO L226 Difference]: Without dead ends: 4618 [2022-07-12 13:39:30,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-07-12 13:39:30,480 INFO L413 NwaCegarLoop]: 1538 mSDtfsCounter, 1589 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 2171 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 4127 SdHoareTripleChecker+Invalid, 3027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 2171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:30,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 4127 Invalid, 3027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 2171 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 13:39:30,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4618 states. [2022-07-12 13:39:30,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4618 to 4506. [2022-07-12 13:39:30,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4506 states, 3552 states have (on average 1.4538288288288288) internal successors, (5164), 3595 states have internal predecessors, (5164), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-12 13:39:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4506 states to 4506 states and 6738 transitions. [2022-07-12 13:39:30,604 INFO L78 Accepts]: Start accepts. Automaton has 4506 states and 6738 transitions. Word has length 333 [2022-07-12 13:39:30,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:30,605 INFO L495 AbstractCegarLoop]: Abstraction has 4506 states and 6738 transitions. [2022-07-12 13:39:30,606 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (29), 6 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-12 13:39:30,606 INFO L276 IsEmpty]: Start isEmpty. Operand 4506 states and 6738 transitions. [2022-07-12 13:39:30,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-07-12 13:39:30,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:30,615 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:39:30,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 13:39:30,615 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:30,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:30,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1305229095, now seen corresponding path program 1 times [2022-07-12 13:39:30,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:30,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142107085] [2022-07-12 13:39:30,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:30,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:30,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:30,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:39:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:39:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:39:30,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:39:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:39:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:39:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-12 13:39:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 13:39:30,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-12 13:39:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-12 13:39:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:30,954 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:39:30,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:30,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142107085] [2022-07-12 13:39:30,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142107085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:30,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:30,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:39:30,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408081697] [2022-07-12 13:39:30,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:30,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:39:30,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:30,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:39:30,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:39:30,956 INFO L87 Difference]: Start difference. First operand 4506 states and 6738 transitions. Second operand has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:39:36,973 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 [] [2022-07-12 13:39:37,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:37,148 INFO L93 Difference]: Finished difference Result 9061 states and 13586 transitions. [2022-07-12 13:39:37,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:39:37,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 358 [2022-07-12 13:39:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:37,164 INFO L225 Difference]: With dead ends: 9061 [2022-07-12 13:39:37,165 INFO L226 Difference]: Without dead ends: 4612 [2022-07-12 13:39:37,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:39:37,176 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 1441 mSDsluCounter, 2704 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 819 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:37,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 4225 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 2062 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-07-12 13:39:37,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4612 states. [2022-07-12 13:39:37,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4612 to 4510. [2022-07-12 13:39:37,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4510 states, 3556 states have (on average 1.453318335208099) internal successors, (5168), 3599 states have internal predecessors, (5168), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-12 13:39:37,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 6742 transitions. [2022-07-12 13:39:37,345 INFO L78 Accepts]: Start accepts. Automaton has 4510 states and 6742 transitions. Word has length 358 [2022-07-12 13:39:37,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:37,347 INFO L495 AbstractCegarLoop]: Abstraction has 4510 states and 6742 transitions. [2022-07-12 13:39:37,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.857142857142858) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:39:37,347 INFO L276 IsEmpty]: Start isEmpty. Operand 4510 states and 6742 transitions. [2022-07-12 13:39:37,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-07-12 13:39:37,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:37,358 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:39:37,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 13:39:37,359 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:37,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:37,360 INFO L85 PathProgramCache]: Analyzing trace with hash 248497893, now seen corresponding path program 1 times [2022-07-12 13:39:37,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:37,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809628473] [2022-07-12 13:39:37,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:37,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:37,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:37,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:37,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:37,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:39:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:39:37,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:39:37,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:39:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:39:37,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:37,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:39:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-07-12 13:39:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2022-07-12 13:39:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-12 13:39:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-12 13:39:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:39:37,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:37,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809628473] [2022-07-12 13:39:37,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809628473] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:37,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:37,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:39:37,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011830553] [2022-07-12 13:39:37,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:37,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:39:37,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:37,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:39:37,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:39:37,716 INFO L87 Difference]: Start difference. First operand 4510 states and 6742 transitions. Second operand has 8 states, 8 states have (on average 17.375) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:39:40,658 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 [] [2022-07-12 13:39:42,968 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 [] [2022-07-12 13:39:47,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:47,683 INFO L93 Difference]: Finished difference Result 11727 states and 18018 transitions. [2022-07-12 13:39:47,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:39:47,683 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 358 [2022-07-12 13:39:47,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:47,719 INFO L225 Difference]: With dead ends: 11727 [2022-07-12 13:39:47,720 INFO L226 Difference]: Without dead ends: 7274 [2022-07-12 13:39:47,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:39:47,735 INFO L413 NwaCegarLoop]: 2108 mSDtfsCounter, 2481 mSDsluCounter, 5201 mSDsCounter, 0 mSdLazyCounter, 3625 mSolverCounterSat, 961 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 7309 SdHoareTripleChecker+Invalid, 4588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 961 IncrementalHoareTripleChecker+Valid, 3625 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:47,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2630 Valid, 7309 Invalid, 4588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [961 Valid, 3625 Invalid, 2 Unknown, 0 Unchecked, 9.7s Time] [2022-07-12 13:39:47,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7274 states. [2022-07-12 13:39:47,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7274 to 4518. [2022-07-12 13:39:47,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 3564 states have (on average 1.452300785634119) internal successors, (5176), 3607 states have internal predecessors, (5176), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-12 13:39:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 6750 transitions. [2022-07-12 13:39:47,913 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 6750 transitions. Word has length 358 [2022-07-12 13:39:47,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:47,913 INFO L495 AbstractCegarLoop]: Abstraction has 4518 states and 6750 transitions. [2022-07-12 13:39:47,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.375) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:39:47,914 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 6750 transitions. [2022-07-12 13:39:47,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-07-12 13:39:47,923 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:47,923 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:39:47,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 13:39:47,924 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:47,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:47,924 INFO L85 PathProgramCache]: Analyzing trace with hash -502414417, now seen corresponding path program 1 times [2022-07-12 13:39:47,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:47,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481792684] [2022-07-12 13:39:47,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:47,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:48,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:39:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:39:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:39:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:39:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:39:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:39:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2022-07-12 13:39:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-12 13:39:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-12 13:39:48,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-12 13:39:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:48,299 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:39:48,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:48,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481792684] [2022-07-12 13:39:48,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481792684] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:48,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:48,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:39:48,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163377709] [2022-07-12 13:39:48,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:48,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:39:48,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:48,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:39:48,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:39:48,301 INFO L87 Difference]: Start difference. First operand 4518 states and 6750 transitions. Second operand has 8 states, 8 states have (on average 19.75) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:39:50,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:39:52,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:39:53,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:39:58,141 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 [] [2022-07-12 13:39:58,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:39:58,635 INFO L93 Difference]: Finished difference Result 11745 states and 18016 transitions. [2022-07-12 13:39:58,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 13:39:58,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 377 [2022-07-12 13:39:58,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:39:58,657 INFO L225 Difference]: With dead ends: 11745 [2022-07-12 13:39:58,657 INFO L226 Difference]: Without dead ends: 7284 [2022-07-12 13:39:58,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:39:58,669 INFO L413 NwaCegarLoop]: 2149 mSDtfsCounter, 2915 mSDsluCounter, 4306 mSDsCounter, 0 mSdLazyCounter, 2904 mSolverCounterSat, 1205 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3023 SdHoareTripleChecker+Valid, 6455 SdHoareTripleChecker+Invalid, 4110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1205 IncrementalHoareTripleChecker+Valid, 2904 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:39:58,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3023 Valid, 6455 Invalid, 4110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1205 Valid, 2904 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2022-07-12 13:39:58,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7284 states. [2022-07-12 13:39:58,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7284 to 4526. [2022-07-12 13:39:58,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4526 states, 3572 states have (on average 1.4512877939529676) internal successors, (5184), 3615 states have internal predecessors, (5184), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-12 13:39:58,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4526 states to 4526 states and 6758 transitions. [2022-07-12 13:39:58,832 INFO L78 Accepts]: Start accepts. Automaton has 4526 states and 6758 transitions. Word has length 377 [2022-07-12 13:39:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:39:58,833 INFO L495 AbstractCegarLoop]: Abstraction has 4526 states and 6758 transitions. [2022-07-12 13:39:58,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.75) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:39:58,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4526 states and 6758 transitions. [2022-07-12 13:39:58,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-07-12 13:39:58,843 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:39:58,843 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:39:58,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 13:39:58,844 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:39:58,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:39:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1365836942, now seen corresponding path program 1 times [2022-07-12 13:39:58,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:39:58,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502929571] [2022-07-12 13:39:58,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:39:58,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:39:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:58,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:39:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:59,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:39:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:39:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:39:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:39:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:39:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:39:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:39:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:39:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:39:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:39:59,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:39:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:39:59,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:39:59,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:39:59,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:39:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:39:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:39:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:39:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:39:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:39:59,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:39:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:39:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-12 13:39:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-12 13:39:59,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-07-12 13:39:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-12 13:39:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:39:59,160 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:39:59,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:39:59,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502929571] [2022-07-12 13:39:59,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502929571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:39:59,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:39:59,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:39:59,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538917180] [2022-07-12 13:39:59,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:39:59,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:39:59,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:39:59,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:39:59,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:39:59,162 INFO L87 Difference]: Start difference. First operand 4526 states and 6758 transitions. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:04,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:40:04,111 INFO L93 Difference]: Finished difference Result 9101 states and 13626 transitions. [2022-07-12 13:40:04,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:40:04,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 378 [2022-07-12 13:40:04,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:40:04,127 INFO L225 Difference]: With dead ends: 9101 [2022-07-12 13:40:04,127 INFO L226 Difference]: Without dead ends: 4632 [2022-07-12 13:40:04,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:40:04,144 INFO L413 NwaCegarLoop]: 1520 mSDtfsCounter, 1436 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 2541 mSolverCounterSat, 804 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 4740 SdHoareTripleChecker+Invalid, 3345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 804 IncrementalHoareTripleChecker+Valid, 2541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:40:04,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 4740 Invalid, 3345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [804 Valid, 2541 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 13:40:04,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4632 states. [2022-07-12 13:40:04,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4632 to 4530. [2022-07-12 13:40:04,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4530 states, 3576 states have (on average 1.4507829977628635) internal successors, (5188), 3619 states have internal predecessors, (5188), 788 states have call successors, (788), 168 states have call predecessors, (788), 165 states have return successors, (786), 768 states have call predecessors, (786), 786 states have call successors, (786) [2022-07-12 13:40:04,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 6762 transitions. [2022-07-12 13:40:04,390 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 6762 transitions. Word has length 378 [2022-07-12 13:40:04,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:40:04,390 INFO L495 AbstractCegarLoop]: Abstraction has 4530 states and 6762 transitions. [2022-07-12 13:40:04,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:04,391 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 6762 transitions. [2022-07-12 13:40:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2022-07-12 13:40:04,401 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:40:04,401 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:40:04,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 13:40:04,402 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:40:04,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:40:04,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1020672564, now seen corresponding path program 1 times [2022-07-12 13:40:04,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:40:04,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094694551] [2022-07-12 13:40:04,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:04,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:40:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:40:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:40:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:40:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:40:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:40:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:04,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:40:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:40:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:40:04,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:40:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:40:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:40:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:40:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:40:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:40:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:40:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:40:04,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:40:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:40:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:40:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:40:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:40:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2022-07-12 13:40:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-12 13:40:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2022-07-12 13:40:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-12 13:40:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:04,695 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:40:04,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:40:04,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094694551] [2022-07-12 13:40:04,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094694551] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:40:04,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:40:04,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 13:40:04,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949237037] [2022-07-12 13:40:04,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:40:04,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 13:40:04,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:40:04,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 13:40:04,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 13:40:04,696 INFO L87 Difference]: Start difference. First operand 4530 states and 6762 transitions. Second operand has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:07,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:40:12,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:40:12,036 INFO L93 Difference]: Finished difference Result 11555 states and 17605 transitions. [2022-07-12 13:40:12,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 13:40:12,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 378 [2022-07-12 13:40:12,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:40:12,056 INFO L225 Difference]: With dead ends: 11555 [2022-07-12 13:40:12,056 INFO L226 Difference]: Without dead ends: 7082 [2022-07-12 13:40:12,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:40:12,068 INFO L413 NwaCegarLoop]: 2175 mSDtfsCounter, 2149 mSDsluCounter, 3869 mSDsCounter, 0 mSdLazyCounter, 2695 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 6044 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 2695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:40:12,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 6044 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 2695 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-12 13:40:12,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7082 states. [2022-07-12 13:40:12,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7082 to 4670. [2022-07-12 13:40:12,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4670 states, 3688 states have (on average 1.4490238611713666) internal successors, (5344), 3731 states have internal predecessors, (5344), 816 states have call successors, (816), 168 states have call predecessors, (816), 165 states have return successors, (814), 796 states have call predecessors, (814), 814 states have call successors, (814) [2022-07-12 13:40:12,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4670 states to 4670 states and 6974 transitions. [2022-07-12 13:40:12,260 INFO L78 Accepts]: Start accepts. Automaton has 4670 states and 6974 transitions. Word has length 378 [2022-07-12 13:40:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:40:12,260 INFO L495 AbstractCegarLoop]: Abstraction has 4670 states and 6974 transitions. [2022-07-12 13:40:12,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.714285714285715) internal successors, (159), 3 states have internal predecessors, (159), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:12,261 INFO L276 IsEmpty]: Start isEmpty. Operand 4670 states and 6974 transitions. [2022-07-12 13:40:12,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2022-07-12 13:40:12,271 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:40:12,271 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:40:12,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 13:40:12,272 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:40:12,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:40:12,272 INFO L85 PathProgramCache]: Analyzing trace with hash 109220375, now seen corresponding path program 1 times [2022-07-12 13:40:12,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:40:12,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729943035] [2022-07-12 13:40:12,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:12,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:40:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:40:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:40:12,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:40:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:40:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:40:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:40:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:40:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:40:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:12,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:40:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:40:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:40:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:40:12,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:40:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:40:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:40:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:40:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:40:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:40:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:40:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:40:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:40:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-12 13:40:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-07-12 13:40:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-12 13:40:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2022-07-12 13:40:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:40:12,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:40:12,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729943035] [2022-07-12 13:40:12,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729943035] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:40:12,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:40:12,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:40:12,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914885114] [2022-07-12 13:40:12,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:40:12,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:40:12,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:40:12,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:40:12,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:40:12,633 INFO L87 Difference]: Start difference. First operand 4670 states and 6974 transitions. Second operand has 8 states, 8 states have (on average 20.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:19,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:40:19,739 INFO L93 Difference]: Finished difference Result 12563 states and 19342 transitions. [2022-07-12 13:40:19,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:40:19,740 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 379 [2022-07-12 13:40:19,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:40:19,763 INFO L225 Difference]: With dead ends: 12563 [2022-07-12 13:40:19,763 INFO L226 Difference]: Without dead ends: 7950 [2022-07-12 13:40:19,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:40:19,774 INFO L413 NwaCegarLoop]: 2298 mSDtfsCounter, 2649 mSDsluCounter, 6627 mSDsCounter, 0 mSdLazyCounter, 4648 mSolverCounterSat, 929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2824 SdHoareTripleChecker+Valid, 8925 SdHoareTripleChecker+Invalid, 5577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 4648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:40:19,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2824 Valid, 8925 Invalid, 5577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [929 Valid, 4648 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-07-12 13:40:19,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7950 states. [2022-07-12 13:40:19,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7950 to 4678. [2022-07-12 13:40:19,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4678 states, 3696 states have (on average 1.448051948051948) internal successors, (5352), 3739 states have internal predecessors, (5352), 816 states have call successors, (816), 168 states have call predecessors, (816), 165 states have return successors, (814), 796 states have call predecessors, (814), 814 states have call successors, (814) [2022-07-12 13:40:19,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4678 states to 4678 states and 6982 transitions. [2022-07-12 13:40:19,971 INFO L78 Accepts]: Start accepts. Automaton has 4678 states and 6982 transitions. Word has length 379 [2022-07-12 13:40:19,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:40:19,972 INFO L495 AbstractCegarLoop]: Abstraction has 4678 states and 6982 transitions. [2022-07-12 13:40:19,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.0) internal successors, (160), 4 states have internal predecessors, (160), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:19,972 INFO L276 IsEmpty]: Start isEmpty. Operand 4678 states and 6982 transitions. [2022-07-12 13:40:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-07-12 13:40:19,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:40:19,981 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:40:19,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 13:40:19,981 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:40:19,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:40:19,982 INFO L85 PathProgramCache]: Analyzing trace with hash -315279114, now seen corresponding path program 1 times [2022-07-12 13:40:19,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:40:19,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16731423] [2022-07-12 13:40:19,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:19,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:40:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:40:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:40:20,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:40:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:40:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:40:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:20,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:40:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:40:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:40:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:40:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:40:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:40:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:40:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:40:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:40:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:40:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:40:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:40:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:40:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:40:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:40:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:40:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-12 13:40:20,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 13:40:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-12 13:40:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-12 13:40:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:40:20,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:40:20,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16731423] [2022-07-12 13:40:20,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16731423] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:40:20,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137140369] [2022-07-12 13:40:20,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:20,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:40:20,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:40:20,362 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) [2022-07-12 13:40:20,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 13:40:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:21,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 3955 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 13:40:21,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:40:21,257 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:40:21,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:40:21,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137140369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:40:21,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:40:21,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-07-12 13:40:21,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614985417] [2022-07-12 13:40:21,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:40:21,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 13:40:21,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:40:21,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 13:40:21,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:40:21,260 INFO L87 Difference]: Start difference. First operand 4678 states and 6982 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:21,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:40:21,512 INFO L93 Difference]: Finished difference Result 11909 states and 18064 transitions. [2022-07-12 13:40:21,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 13:40:21,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 380 [2022-07-12 13:40:21,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:40:21,542 INFO L225 Difference]: With dead ends: 11909 [2022-07-12 13:40:21,542 INFO L226 Difference]: Without dead ends: 7288 [2022-07-12 13:40:21,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-12 13:40:21,555 INFO L413 NwaCegarLoop]: 2338 mSDtfsCounter, 711 mSDsluCounter, 4100 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 6438 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 13:40:21,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 6438 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 13:40:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7288 states. [2022-07-12 13:40:21,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7288 to 4966. [2022-07-12 13:40:21,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4966 states, 3928 states have (on average 1.445010183299389) internal successors, (5676), 3971 states have internal predecessors, (5676), 872 states have call successors, (872), 168 states have call predecessors, (872), 165 states have return successors, (870), 852 states have call predecessors, (870), 870 states have call successors, (870) [2022-07-12 13:40:21,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4966 states to 4966 states and 7418 transitions. [2022-07-12 13:40:21,799 INFO L78 Accepts]: Start accepts. Automaton has 4966 states and 7418 transitions. Word has length 380 [2022-07-12 13:40:21,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:40:21,800 INFO L495 AbstractCegarLoop]: Abstraction has 4966 states and 7418 transitions. [2022-07-12 13:40:21,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:21,800 INFO L276 IsEmpty]: Start isEmpty. Operand 4966 states and 7418 transitions. [2022-07-12 13:40:21,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-07-12 13:40:21,814 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:40:21,814 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:40:21,839 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-12 13:40:22,027 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 [2022-07-12 13:40:22,028 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:40:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:40:22,028 INFO L85 PathProgramCache]: Analyzing trace with hash -369672012, now seen corresponding path program 1 times [2022-07-12 13:40:22,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:40:22,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642537417] [2022-07-12 13:40:22,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:22,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:40:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:40:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:40:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:40:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:40:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:40:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:40:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:40:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:40:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:40:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:40:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:40:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:40:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:40:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:40:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:40:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:40:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:40:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:40:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:40:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:40:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:40:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-12 13:40:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 13:40:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-12 13:40:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-12 13:40:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:22,370 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:40:22,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:40:22,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642537417] [2022-07-12 13:40:22,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642537417] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:40:22,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230739679] [2022-07-12 13:40:22,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:22,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:40:22,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:40:22,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 13:40:22,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 13:40:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:23,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 3952 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 13:40:23,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:40:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2022-07-12 13:40:23,506 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 13:40:23,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230739679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:40:23,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 13:40:23,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2022-07-12 13:40:23,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467437148] [2022-07-12 13:40:23,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:40:23,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 13:40:23,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:40:23,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 13:40:23,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:40:23,510 INFO L87 Difference]: Start difference. First operand 4966 states and 7418 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 13:40:24,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:40:24,643 INFO L93 Difference]: Finished difference Result 14790 states and 22117 transitions. [2022-07-12 13:40:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 13:40:24,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 380 [2022-07-12 13:40:24,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:40:24,689 INFO L225 Difference]: With dead ends: 14790 [2022-07-12 13:40:24,690 INFO L226 Difference]: Without dead ends: 14780 [2022-07-12 13:40:24,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 13:40:24,700 INFO L413 NwaCegarLoop]: 3502 mSDtfsCounter, 3163 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3163 SdHoareTripleChecker+Valid, 6396 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-12 13:40:24,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3163 Valid, 6396 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-12 13:40:24,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14780 states. [2022-07-12 13:40:25,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14780 to 14746. [2022-07-12 13:40:25,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14746 states, 11684 states have (on average 1.4484765491270113) internal successors, (16924), 11827 states have internal predecessors, (16924), 2576 states have call successors, (2576), 492 states have call predecessors, (2576), 485 states have return successors, (2574), 2504 states have call predecessors, (2574), 2574 states have call successors, (2574) [2022-07-12 13:40:25,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14746 states to 14746 states and 22074 transitions. [2022-07-12 13:40:25,290 INFO L78 Accepts]: Start accepts. Automaton has 14746 states and 22074 transitions. Word has length 380 [2022-07-12 13:40:25,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:40:25,290 INFO L495 AbstractCegarLoop]: Abstraction has 14746 states and 22074 transitions. [2022-07-12 13:40:25,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-12 13:40:25,291 INFO L276 IsEmpty]: Start isEmpty. Operand 14746 states and 22074 transitions. [2022-07-12 13:40:25,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-07-12 13:40:25,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:40:25,315 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 13:40:25,358 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 13:40:25,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-12 13:40:25,544 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:40:25,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:40:25,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1390740366, now seen corresponding path program 1 times [2022-07-12 13:40:25,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:40:25,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540700093] [2022-07-12 13:40:25,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:25,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:40:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:40:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:40:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:40:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:40:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:40:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:40:25,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:40:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:40:25,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:40:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:40:25,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:40:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:40:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:40:25,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:40:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:40:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:40:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:25,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:40:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:40:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:40:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:40:25,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:40:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-12 13:40:25,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 13:40:25,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-12 13:40:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-12 13:40:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:40:25,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:40:25,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540700093] [2022-07-12 13:40:25,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540700093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:40:25,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:40:25,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:40:25,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398330033] [2022-07-12 13:40:25,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:40:25,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:40:25,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:40:25,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:40:25,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:40:25,952 INFO L87 Difference]: Start difference. First operand 14746 states and 22074 transitions. Second operand has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-07-12 13:40:28,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:40:34,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:40:34,660 INFO L93 Difference]: Finished difference Result 38894 states and 58674 transitions. [2022-07-12 13:40:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 13:40:34,661 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) Word has length 380 [2022-07-12 13:40:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:40:34,750 INFO L225 Difference]: With dead ends: 38894 [2022-07-12 13:40:34,750 INFO L226 Difference]: Without dead ends: 31493 [2022-07-12 13:40:34,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2022-07-12 13:40:34,827 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 4530 mSDsluCounter, 5044 mSDsCounter, 0 mSdLazyCounter, 4552 mSolverCounterSat, 1885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4695 SdHoareTripleChecker+Valid, 6996 SdHoareTripleChecker+Invalid, 6437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1885 IncrementalHoareTripleChecker+Valid, 4552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:40:34,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4695 Valid, 6996 Invalid, 6437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1885 Valid, 4552 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-07-12 13:40:34,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31493 states. [2022-07-12 13:40:35,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31493 to 14752. [2022-07-12 13:40:35,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14752 states, 11690 states have (on average 1.448246364414029) internal successors, (16930), 11835 states have internal predecessors, (16930), 2576 states have call successors, (2576), 492 states have call predecessors, (2576), 485 states have return successors, (2574), 2502 states have call predecessors, (2574), 2574 states have call successors, (2574) [2022-07-12 13:40:35,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14752 states to 14752 states and 22080 transitions. [2022-07-12 13:40:35,708 INFO L78 Accepts]: Start accepts. Automaton has 14752 states and 22080 transitions. Word has length 380 [2022-07-12 13:40:35,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:40:35,709 INFO L495 AbstractCegarLoop]: Abstraction has 14752 states and 22080 transitions. [2022-07-12 13:40:35,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.125) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (30), 6 states have call predecessors, (30), 1 states have return successors, (29), 1 states have call predecessors, (29), 1 states have call successors, (29) [2022-07-12 13:40:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14752 states and 22080 transitions. [2022-07-12 13:40:35,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-07-12 13:40:35,734 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:40:35,734 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:40:35,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 13:40:35,734 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:40:35,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:40:35,735 INFO L85 PathProgramCache]: Analyzing trace with hash -483530233, now seen corresponding path program 1 times [2022-07-12 13:40:35,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:40:35,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985980324] [2022-07-12 13:40:35,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:35,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:40:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:40:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:40:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:40:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:40:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:35,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:40:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:40:35,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:40:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:40:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:35,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:35,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:40:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:40:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:40:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:40:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:36,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:40:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:40:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:36,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:40:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:40:36,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-12 13:40:36,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-12 13:40:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-12 13:40:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-12 13:40:36,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-12 13:40:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-12 13:40:36,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2022-07-12 13:40:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2022-07-12 13:40:36,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-12 13:40:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:40:36,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:40:36,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985980324] [2022-07-12 13:40:36,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985980324] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:40:36,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:40:36,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-12 13:40:36,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623359901] [2022-07-12 13:40:36,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:40:36,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 13:40:36,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:40:36,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 13:40:36,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-12 13:40:36,087 INFO L87 Difference]: Start difference. First operand 14752 states and 22080 transitions. Second operand has 8 states, 8 states have (on average 20.25) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:40,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:40:40,625 INFO L93 Difference]: Finished difference Result 38397 states and 58579 transitions. [2022-07-12 13:40:40,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 13:40:40,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 381 [2022-07-12 13:40:40,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:40:40,688 INFO L225 Difference]: With dead ends: 38397 [2022-07-12 13:40:40,688 INFO L226 Difference]: Without dead ends: 23702 [2022-07-12 13:40:40,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-12 13:40:40,720 INFO L413 NwaCegarLoop]: 1931 mSDtfsCounter, 2692 mSDsluCounter, 3596 mSDsCounter, 0 mSdLazyCounter, 2183 mSolverCounterSat, 1395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 5527 SdHoareTripleChecker+Invalid, 3578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 2183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 13:40:40,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2818 Valid, 5527 Invalid, 3578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1395 Valid, 2183 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 13:40:40,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23702 states. [2022-07-12 13:40:41,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23702 to 14764. [2022-07-12 13:40:41,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14764 states, 11702 states have (on average 1.4477867031276705) internal successors, (16942), 11847 states have internal predecessors, (16942), 2576 states have call successors, (2576), 492 states have call predecessors, (2576), 485 states have return successors, (2574), 2502 states have call predecessors, (2574), 2574 states have call successors, (2574) [2022-07-12 13:40:41,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14764 states to 14764 states and 22092 transitions. [2022-07-12 13:40:41,529 INFO L78 Accepts]: Start accepts. Automaton has 14764 states and 22092 transitions. Word has length 381 [2022-07-12 13:40:41,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:40:41,530 INFO L495 AbstractCegarLoop]: Abstraction has 14764 states and 22092 transitions. [2022-07-12 13:40:41,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.25) internal successors, (162), 3 states have internal predecessors, (162), 2 states have call successors, (30), 7 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:40:41,530 INFO L276 IsEmpty]: Start isEmpty. Operand 14764 states and 22092 transitions. [2022-07-12 13:40:41,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-07-12 13:40:41,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:40:41,550 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:40:41,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 13:40:41,551 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:40:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:40:41,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1096152730, now seen corresponding path program 1 times [2022-07-12 13:40:41,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:40:41,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624307109] [2022-07-12 13:40:41,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:40:41,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:40:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:40:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:40:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:42,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:40:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:42,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:40:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:40:42,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:40:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:40:42,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:40:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:40:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:40:42,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:40:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:40:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:40:42,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:40:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:40:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:40:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:40:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 13:40:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-12 13:40:42,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:40:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-12 13:40:42,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:40:42,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-12 13:40:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-07-12 13:40:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2022-07-12 13:40:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-12 13:40:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-12 13:40:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:40:42,452 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:40:42,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:40:42,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624307109] [2022-07-12 13:40:42,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624307109] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:40:42,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:40:42,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-12 13:40:42,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910654785] [2022-07-12 13:40:42,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:40:42,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-12 13:40:42,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:40:42,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-12 13:40:42,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-07-12 13:40:42,454 INFO L87 Difference]: Start difference. First operand 14764 states and 22092 transitions. Second operand has 18 states, 16 states have (on average 10.25) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (30), 7 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-12 13:40:45,719 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:40:46,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:40:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:40:59,103 INFO L93 Difference]: Finished difference Result 35977 states and 55032 transitions. [2022-07-12 13:40:59,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 13:40:59,103 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 10.25) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (30), 7 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) Word has length 383 [2022-07-12 13:40:59,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:40:59,167 INFO L225 Difference]: With dead ends: 35977 [2022-07-12 13:40:59,167 INFO L226 Difference]: Without dead ends: 21270 [2022-07-12 13:40:59,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2022-07-12 13:40:59,203 INFO L413 NwaCegarLoop]: 1998 mSDtfsCounter, 2576 mSDsluCounter, 16968 mSDsCounter, 0 mSdLazyCounter, 12159 mSolverCounterSat, 1073 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2637 SdHoareTripleChecker+Valid, 18966 SdHoareTripleChecker+Invalid, 13232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1073 IncrementalHoareTripleChecker+Valid, 12159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-07-12 13:40:59,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2637 Valid, 18966 Invalid, 13232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1073 Valid, 12159 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2022-07-12 13:40:59,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21270 states. [2022-07-12 13:41:00,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21270 to 14812. [2022-07-12 13:41:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14812 states, 11738 states have (on average 1.446413358323394) internal successors, (16978), 11883 states have internal predecessors, (16978), 2588 states have call successors, (2588), 492 states have call predecessors, (2588), 485 states have return successors, (2586), 2514 states have call predecessors, (2586), 2586 states have call successors, (2586) [2022-07-12 13:41:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14812 states to 14812 states and 22152 transitions. [2022-07-12 13:41:00,297 INFO L78 Accepts]: Start accepts. Automaton has 14812 states and 22152 transitions. Word has length 383 [2022-07-12 13:41:00,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:00,297 INFO L495 AbstractCegarLoop]: Abstraction has 14812 states and 22152 transitions. [2022-07-12 13:41:00,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 10.25) internal successors, (164), 10 states have internal predecessors, (164), 4 states have call successors, (30), 7 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-07-12 13:41:00,297 INFO L276 IsEmpty]: Start isEmpty. Operand 14812 states and 22152 transitions. [2022-07-12 13:41:00,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-07-12 13:41:00,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:00,316 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:41:00,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 13:41:00,317 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:00,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:00,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1642650605, now seen corresponding path program 1 times [2022-07-12 13:41:00,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:00,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873346805] [2022-07-12 13:41:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:00,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:00,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:00,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:41:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:41:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:41:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:41:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:41:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:41:00,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:41:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 13:41:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-12 13:41:00,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:41:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-12 13:41:00,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-12 13:41:00,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-07-12 13:41:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-12 13:41:00,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-12 13:41:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2022-07-12 13:41:00,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:41:00,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:00,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873346805] [2022-07-12 13:41:00,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873346805] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:00,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:00,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-12 13:41:00,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877202323] [2022-07-12 13:41:00,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:00,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-12 13:41:00,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:00,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-12 13:41:00,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-07-12 13:41:00,818 INFO L87 Difference]: Start difference. First operand 14812 states and 22152 transitions. Second operand has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (30), 8 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:41:13,420 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 [] [2022-07-12 13:41:13,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:13,822 INFO L93 Difference]: Finished difference Result 41701 states and 64026 transitions. [2022-07-12 13:41:13,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 13:41:13,822 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (30), 8 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 389 [2022-07-12 13:41:13,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:13,890 INFO L225 Difference]: With dead ends: 41701 [2022-07-12 13:41:13,891 INFO L226 Difference]: Without dead ends: 26946 [2022-07-12 13:41:13,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-07-12 13:41:13,921 INFO L413 NwaCegarLoop]: 2027 mSDtfsCounter, 5771 mSDsluCounter, 9106 mSDsCounter, 0 mSdLazyCounter, 7005 mSolverCounterSat, 2099 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5772 SdHoareTripleChecker+Valid, 11133 SdHoareTripleChecker+Invalid, 9105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2099 IncrementalHoareTripleChecker+Valid, 7005 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:13,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5772 Valid, 11133 Invalid, 9105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2099 Valid, 7005 Invalid, 1 Unknown, 0 Unchecked, 11.4s Time] [2022-07-12 13:41:13,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26946 states. [2022-07-12 13:41:14,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26946 to 14896. [2022-07-12 13:41:14,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14896 states, 11810 states have (on average 1.443691786621507) internal successors, (17050), 11955 states have internal predecessors, (17050), 2588 states have call successors, (2588), 492 states have call predecessors, (2588), 497 states have return successors, (2646), 2526 states have call predecessors, (2646), 2586 states have call successors, (2646) [2022-07-12 13:41:14,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14896 states to 14896 states and 22284 transitions. [2022-07-12 13:41:14,928 INFO L78 Accepts]: Start accepts. Automaton has 14896 states and 22284 transitions. Word has length 389 [2022-07-12 13:41:14,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:14,929 INFO L495 AbstractCegarLoop]: Abstraction has 14896 states and 22284 transitions. [2022-07-12 13:41:14,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.142857142857142) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (30), 8 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-07-12 13:41:14,929 INFO L276 IsEmpty]: Start isEmpty. Operand 14896 states and 22284 transitions. [2022-07-12 13:41:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-07-12 13:41:14,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:14,947 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:41:14,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 13:41:14,948 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:14,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:14,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1111222843, now seen corresponding path program 1 times [2022-07-12 13:41:14,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:14,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071310346] [2022-07-12 13:41:14,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:14,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:15,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:15,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:41:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:41:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:41:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:41:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:41:15,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:41:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:41:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 13:41:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-12 13:41:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:41:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-12 13:41:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-12 13:41:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-12 13:41:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-12 13:41:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-12 13:41:15,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2022-07-12 13:41:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2022-07-12 13:41:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2022-07-12 13:41:15,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:15,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071310346] [2022-07-12 13:41:15,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071310346] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:15,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:15,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-12 13:41:15,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145433056] [2022-07-12 13:41:15,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:15,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-12 13:41:15,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:15,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-12 13:41:15,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-07-12 13:41:15,765 INFO L87 Difference]: Start difference. First operand 14896 states and 22284 transitions. Second operand has 19 states, 17 states have (on average 10.117647058823529) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (31), 8 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 13:41:29,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:29,923 INFO L93 Difference]: Finished difference Result 36217 states and 55344 transitions. [2022-07-12 13:41:29,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-12 13:41:29,924 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 10.117647058823529) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (31), 8 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 393 [2022-07-12 13:41:29,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:29,969 INFO L225 Difference]: With dead ends: 36217 [2022-07-12 13:41:29,970 INFO L226 Difference]: Without dead ends: 21378 [2022-07-12 13:41:29,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2022-07-12 13:41:29,992 INFO L413 NwaCegarLoop]: 1996 mSDtfsCounter, 3545 mSDsluCounter, 16876 mSDsCounter, 0 mSdLazyCounter, 12327 mSolverCounterSat, 1623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3608 SdHoareTripleChecker+Valid, 18872 SdHoareTripleChecker+Invalid, 13950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1623 IncrementalHoareTripleChecker+Valid, 12327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:29,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3608 Valid, 18872 Invalid, 13950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1623 Valid, 12327 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2022-07-12 13:41:30,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21378 states. [2022-07-12 13:41:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21378 to 14896. [2022-07-12 13:41:30,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14896 states, 11810 states have (on average 1.443691786621507) internal successors, (17050), 11955 states have internal predecessors, (17050), 2588 states have call successors, (2588), 492 states have call predecessors, (2588), 497 states have return successors, (2646), 2526 states have call predecessors, (2646), 2586 states have call successors, (2646) [2022-07-12 13:41:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14896 states to 14896 states and 22284 transitions. [2022-07-12 13:41:30,854 INFO L78 Accepts]: Start accepts. Automaton has 14896 states and 22284 transitions. Word has length 393 [2022-07-12 13:41:30,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:30,855 INFO L495 AbstractCegarLoop]: Abstraction has 14896 states and 22284 transitions. [2022-07-12 13:41:30,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 10.117647058823529) internal successors, (172), 10 states have internal predecessors, (172), 4 states have call successors, (31), 8 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2022-07-12 13:41:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 14896 states and 22284 transitions. [2022-07-12 13:41:30,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2022-07-12 13:41:30,872 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:30,872 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:41:30,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 13:41:30,872 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:30,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:30,873 INFO L85 PathProgramCache]: Analyzing trace with hash -915463513, now seen corresponding path program 1 times [2022-07-12 13:41:30,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:30,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607840970] [2022-07-12 13:41:30,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:30,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:31,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:31,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:41:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:41:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:41:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:41:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:41:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:41:31,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:41:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:31,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 13:41:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-12 13:41:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:41:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 13:41:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 13:41:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-07-12 13:41:32,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2022-07-12 13:41:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-12 13:41:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2022-07-12 13:41:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-12 13:41:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-07-12 13:41:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2022-07-12 13:41:32,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:32,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607840970] [2022-07-12 13:41:32,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607840970] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 13:41:32,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 13:41:32,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 13:41:32,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711652228] [2022-07-12 13:41:32,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 13:41:32,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 13:41:32,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:32,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 13:41:32,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-07-12 13:41:32,062 INFO L87 Difference]: Start difference. First operand 14896 states and 22284 transitions. Second operand has 10 states, 10 states have (on average 17.1) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-12 13:41:34,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:40,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-12 13:41:40,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 13:41:40,845 INFO L93 Difference]: Finished difference Result 33273 states and 50389 transitions. [2022-07-12 13:41:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 13:41:40,846 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 409 [2022-07-12 13:41:40,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 13:41:40,893 INFO L225 Difference]: With dead ends: 33273 [2022-07-12 13:41:40,893 INFO L226 Difference]: Without dead ends: 18434 [2022-07-12 13:41:40,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-07-12 13:41:40,934 INFO L413 NwaCegarLoop]: 1904 mSDtfsCounter, 3672 mSDsluCounter, 3972 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 1700 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3795 SdHoareTripleChecker+Valid, 5876 SdHoareTripleChecker+Invalid, 3770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1700 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-12 13:41:40,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3795 Valid, 5876 Invalid, 3770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1700 Valid, 2069 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-07-12 13:41:40,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18434 states. [2022-07-12 13:41:41,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18434 to 14908. [2022-07-12 13:41:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14908 states, 11822 states have (on average 1.4432414143122991) internal successors, (17062), 11967 states have internal predecessors, (17062), 2588 states have call successors, (2588), 492 states have call predecessors, (2588), 497 states have return successors, (2646), 2526 states have call predecessors, (2646), 2586 states have call successors, (2646) [2022-07-12 13:41:41,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14908 states to 14908 states and 22296 transitions. [2022-07-12 13:41:41,923 INFO L78 Accepts]: Start accepts. Automaton has 14908 states and 22296 transitions. Word has length 409 [2022-07-12 13:41:41,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 13:41:41,923 INFO L495 AbstractCegarLoop]: Abstraction has 14908 states and 22296 transitions. [2022-07-12 13:41:41,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.1) internal successors, (171), 4 states have internal predecessors, (171), 3 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-12 13:41:41,923 INFO L276 IsEmpty]: Start isEmpty. Operand 14908 states and 22296 transitions. [2022-07-12 13:41:41,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-07-12 13:41:41,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 13:41:41,940 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 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] [2022-07-12 13:41:41,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 13:41:41,940 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 13:41:41,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 13:41:41,940 INFO L85 PathProgramCache]: Analyzing trace with hash 557008273, now seen corresponding path program 1 times [2022-07-12 13:41:41,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 13:41:41,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726947124] [2022-07-12 13:41:41,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:41,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 13:41:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-12 13:41:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 13:41:42,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 13:41:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 13:41:42,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 13:41:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:42,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 13:41:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:42,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 13:41:42,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:42,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 13:41:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-12 13:41:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 13:41:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-12 13:41:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 13:41:42,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-12 13:41:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-12 13:41:42,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-12 13:41:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-12 13:41:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-12 13:41:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-12 13:41:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-12 13:41:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 13:41:42,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 13:41:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 13:41:42,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-12 13:41:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 13:41:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2022-07-12 13:41:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-12 13:41:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-07-12 13:41:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-07-12 13:41:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2022-07-12 13:41:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:42,691 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2022-07-12 13:41:42,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 13:41:42,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726947124] [2022-07-12 13:41:42,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726947124] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:41:42,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833046303] [2022-07-12 13:41:42,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 13:41:42,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 13:41:42,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 13:41:42,694 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 13:41:42,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 13:41:43,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 13:41:43,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 4183 conjuncts, 303 conjunts are in the unsatisfiable core [2022-07-12 13:41:43,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 13:41:44,186 INFO L356 Elim1Store]: treesize reduction 502, result has 19.4 percent of original size [2022-07-12 13:41:44,186 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 70 treesize of output 163 [2022-07-12 13:41:45,304 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:45,364 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:45,425 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-07-12 13:41:45,426 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-07-12 13:41:45,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:45,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:45,568 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-07-12 13:41:45,568 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-07-12 13:41:45,628 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:45,663 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:45,740 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-07-12 13:41:45,740 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-07-12 13:41:45,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:45,824 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:45,883 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-07-12 13:41:45,883 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-07-12 13:41:45,964 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:45,999 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:46,055 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-07-12 13:41:46,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-07-12 13:41:46,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:46,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:46,201 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-07-12 13:41:46,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-07-12 13:41:46,267 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:46,294 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:46,355 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-07-12 13:41:46,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-07-12 13:41:46,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:46,442 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-12 13:41:46,494 INFO L356 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2022-07-12 13:41:46,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2022-07-12 13:41:47,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 13:41:47,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-12 13:41:47,479 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 13:41:47,479 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-12 13:41:47,800 INFO L356 Elim1Store]: treesize reduction 191, result has 29.0 percent of original size [2022-07-12 13:41:47,801 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 93 [2022-07-12 13:41:49,114 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 13:41:49,123 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 13:41:49,132 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-07-12 13:41:49,213 INFO L356 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2022-07-12 13:41:49,214 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 43 [2022-07-12 13:41:49,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,720 INFO L356 Elim1Store]: treesize reduction 776, result has 6.6 percent of original size [2022-07-12 13:41:49,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 86 treesize of output 97 [2022-07-12 13:41:49,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 80 [2022-07-12 13:41:49,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:49,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 38 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 80 [2022-07-12 13:41:51,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 13:41:51,732 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-07-12 13:41:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:52,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2022-07-12 13:41:52,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:52,180 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 13:41:52,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 46 [2022-07-12 13:41:52,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 13:41:52,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2022-07-12 13:41:52,385 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 13:41:52,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:52,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:52,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:52,389 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 72 [2022-07-12 13:41:52,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:52,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:52,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:52,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 54 [2022-07-12 13:41:53,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:53,044 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 13:41:53,045 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 53 [2022-07-12 13:41:53,050 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-12 13:41:53,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:53,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 65 [2022-07-12 13:41:53,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 47 [2022-07-12 13:41:53,617 INFO L356 Elim1Store]: treesize reduction 181, result has 13.4 percent of original size [2022-07-12 13:41:53,617 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 63 [2022-07-12 13:41:53,947 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-07-12 13:41:53,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 45 [2022-07-12 13:41:54,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:54,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:54,066 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 13:41:54,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 56 [2022-07-12 13:41:54,080 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-07-12 13:41:54,080 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 42 [2022-07-12 13:41:54,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-07-12 13:41:55,064 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5720 Int) (INIT_LIST_HEAD_~list.offset Int) (v_ArrVal_5719 Int)) (and (= (store |c_old(#memory_int)| |c_INIT_LIST_HEAD_#in~list.base| (store (store (select |c_old(#memory_int)| |c_INIT_LIST_HEAD_#in~list.base|) INIT_LIST_HEAD_~list.offset v_ArrVal_5720) (+ 8 INIT_LIST_HEAD_~list.offset) v_ArrVal_5719)) |c_#memory_int|) (<= |c_INIT_LIST_HEAD_#in~list.offset| INIT_LIST_HEAD_~list.offset))) is different from true [2022-07-12 13:41:55,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:55,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:55,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:55,081 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2022-07-12 13:41:55,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-12 13:41:55,107 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 51 [2022-07-12 13:41:55,121 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-12 13:41:55,121 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 51 [2022-07-12 13:41:55,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2022-07-12 13:41:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 75 proven. 140 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2022-07-12 13:41:55,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 13:41:55,413 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5727 Int) (v_ArrVal_5723 (Array Int Int))) (not (= (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_raid_ctr_~rs~5#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_raid_ctr_~rs~5#1.base|) (+ |c_ULTIMATE.start_raid_ctr_~rs~5#1.offset| 1918) v_ArrVal_5727)) |c_ULTIMATE.start_raid_ctr_~ti#1.base| v_ArrVal_5723) |c_ULTIMATE.start_raid_ctr_~rs~5#1.base|) (+ |c_ULTIMATE.start_raid_ctr_~rs~5#1.offset| 426)) 4))) is different from false [2022-07-12 13:41:55,463 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5727 Int) (v_ArrVal_5737 Int) (v_ArrVal_5736 Int) (v_ArrVal_5723 (Array Int Int)) (v_INIT_LIST_HEAD_~list.offset_4 Int)) (or (< v_INIT_LIST_HEAD_~list.offset_4 (+ |c_ULTIMATE.start_raid_ctr_~rs~5#1.offset| 1902)) (not (= 4 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_raid_ctr_~rs~5#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_raid_ctr_~rs~5#1.base|) v_INIT_LIST_HEAD_~list.offset_4 v_ArrVal_5736) (+ 8 v_INIT_LIST_HEAD_~list.offset_4) v_ArrVal_5737) (+ |c_ULTIMATE.start_raid_ctr_~rs~5#1.offset| 1918) v_ArrVal_5727)) |c_ULTIMATE.start_raid_ctr_~ti#1.base| v_ArrVal_5723) |c_ULTIMATE.start_raid_ctr_~rs~5#1.base|) (+ |c_ULTIMATE.start_raid_ctr_~rs~5#1.offset| 426)))))) is different from false [2022-07-12 13:41:55,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833046303] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 13:41:55,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-12 13:41:55,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 47] total 55 [2022-07-12 13:41:55,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774915803] [2022-07-12 13:41:55,466 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-12 13:41:55,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-07-12 13:41:55,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 13:41:55,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-07-12 13:41:55,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=2788, Unknown=4, NotChecked=324, Total=3306 [2022-07-12 13:41:55,468 INFO L87 Difference]: Start difference. First operand 14908 states and 22296 transitions. Second operand has 55 states, 53 states have (on average 6.320754716981132) internal successors, (335), 47 states have internal predecessors, (335), 15 states have call successors, (69), 15 states have call predecessors, (69), 14 states have return successors, (68), 15 states have call predecessors, (68), 15 states have call successors, (68)