./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 0f8a17c6 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 0.2.1-dev-0f8a17c [2021-11-17 03:30:36,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 03:30:36,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 03:30:36,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 03:30:36,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 03:30:36,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 03:30:36,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 03:30:36,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 03:30:36,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 03:30:36,968 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 03:30:36,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 03:30:36,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 03:30:36,970 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 03:30:36,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 03:30:36,973 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 03:30:36,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 03:30:36,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 03:30:36,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 03:30:36,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 03:30:36,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 03:30:36,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 03:30:36,988 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 03:30:36,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 03:30:36,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 03:30:36,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 03:30:36,996 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 03:30:36,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 03:30:36,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 03:30:36,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 03:30:36,997 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 03:30:36,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 03:30:36,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 03:30:36,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 03:30:36,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 03:30:37,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 03:30:37,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 03:30:37,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 03:30:37,001 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 03:30:37,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 03:30:37,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 03:30:37,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 03:30:37,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 03:30:37,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 03:30:37,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 03:30:37,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 03:30:37,035 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 03:30:37,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 03:30:37,036 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 03:30:37,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 03:30:37,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 03:30:37,037 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 03:30:37,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 03:30:37,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 03:30:37,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 03:30:37,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 03:30:37,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 03:30:37,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 03:30:37,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 03:30:37,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 03:30:37,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 03:30:37,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 03:30:37,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 03:30:37,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 03:30:37,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:30:37,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 03:30:37,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 03:30:37,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 03:30:37,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 03:30:37,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 03:30:37,040 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 03:30:37,041 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 03:30:37,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 03:30:37,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 03:30:37,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad [2021-11-17 03:30:37,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 03:30:37,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 03:30:37,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 03:30:37,310 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 03:30:37,311 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 03:30:37,312 INFO L432 ainManager$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 [2021-11-17 03:30:37,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbd95d4d4/ad2653ed80924d1b9a9e95e7156e31ea/FLAGcedf9c1ec [2021-11-17 03:30:38,009 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 03:30:38,010 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 [2021-11-17 03:30:38,059 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbd95d4d4/ad2653ed80924d1b9a9e95e7156e31ea/FLAGcedf9c1ec [2021-11-17 03:30:38,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbd95d4d4/ad2653ed80924d1b9a9e95e7156e31ea [2021-11-17 03:30:38,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 03:30:38,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 03:30:38,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 03:30:38,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 03:30:38,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 03:30:38,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:30:38" (1/1) ... [2021-11-17 03:30:38,161 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bbb4b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:38, skipping insertion in model container [2021-11-17 03:30:38,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 03:30:38" (1/1) ... [2021-11-17 03:30:38,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 03:30:38,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 03:30:39,568 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] [2021-11-17 03:30:39,664 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:30:39,683 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 03:30:39,990 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] [2021-11-17 03:30:39,999 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 03:30:40,061 INFO L208 MainTranslator]: Completed translation [2021-11-17 03:30:40,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40 WrapperNode [2021-11-17 03:30:40,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 03:30:40,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 03:30:40,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 03:30:40,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 03:30:40,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,129 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,280 INFO L137 Inliner]: procedures = 221, calls = 1591, calls flagged for inlining = 84, calls inlined = 76, statements flattened = 4428 [2021-11-17 03:30:40,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 03:30:40,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 03:30:40,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 03:30:40,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 03:30:40,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 03:30:40,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 03:30:40,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 03:30:40,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 03:30:40,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (1/1) ... [2021-11-17 03:30:40,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 03:30:40,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:30:40,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 03:30:40,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 03:30:40,560 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2021-11-17 03:30:40,561 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2021-11-17 03:30:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2021-11-17 03:30:40,561 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2021-11-17 03:30:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 03:30:40,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 03:30:40,561 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 03:30:40,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 03:30:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-17 03:30:40,562 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-17 03:30:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2021-11-17 03:30:40,562 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2021-11-17 03:30:40,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 03:30:40,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 03:30:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2021-11-17 03:30:40,563 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2021-11-17 03:30:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2021-11-17 03:30:40,563 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2021-11-17 03:30:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 03:30:40,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 03:30:40,563 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 03:30:40,563 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 03:30:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2021-11-17 03:30:40,564 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2021-11-17 03:30:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 03:30:40,564 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 03:30:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 03:30:40,564 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 03:30:40,564 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2021-11-17 03:30:40,565 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2021-11-17 03:30:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 03:30:40,565 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 03:30:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-11-17 03:30:40,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-11-17 03:30:40,565 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2021-11-17 03:30:40,565 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2021-11-17 03:30:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2021-11-17 03:30:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2021-11-17 03:30:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 03:30:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 03:30:40,566 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 03:30:40,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 03:30:40,567 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2021-11-17 03:30:40,567 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2021-11-17 03:30:40,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 03:30:40,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 03:30:40,567 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2021-11-17 03:30:40,568 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2021-11-17 03:30:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 03:30:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 03:30:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2021-11-17 03:30:40,568 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2021-11-17 03:30:40,568 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2021-11-17 03:30:40,568 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2021-11-17 03:30:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2021-11-17 03:30:40,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2021-11-17 03:30:40,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 03:30:40,570 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2021-11-17 03:30:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2021-11-17 03:30:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 03:30:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 03:30:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2021-11-17 03:30:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2021-11-17 03:30:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 03:30:40,571 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2021-11-17 03:30:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2021-11-17 03:30:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2021-11-17 03:30:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2021-11-17 03:30:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 03:30:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 03:30:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 03:30:40,572 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2021-11-17 03:30:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2021-11-17 03:30:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 03:30:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 03:30:40,573 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2021-11-17 03:30:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2021-11-17 03:30:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 03:30:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 03:30:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-11-17 03:30:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-11-17 03:30:40,574 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2021-11-17 03:30:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2021-11-17 03:30:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2021-11-17 03:30:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2021-11-17 03:30:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2021-11-17 03:30:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2021-11-17 03:30:40,575 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 03:30:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-17 03:30:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 03:30:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 03:30:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 03:30:40,576 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2021-11-17 03:30:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2021-11-17 03:30:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2021-11-17 03:30:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2021-11-17 03:30:40,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 03:30:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 03:30:40,578 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-17 03:30:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-17 03:30:41,124 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 03:30:41,126 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 03:30:41,430 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 03:30:43,907 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 03:30:43,919 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 03:30:43,919 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 03:30:43,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:30:43 BoogieIcfgContainer [2021-11-17 03:30:43,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 03:30:43,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 03:30:43,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 03:30:43,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 03:30:43,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 03:30:38" (1/3) ... [2021-11-17 03:30:43,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f46db1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:30:43, skipping insertion in model container [2021-11-17 03:30:43,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 03:30:40" (2/3) ... [2021-11-17 03:30:43,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f46db1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 03:30:43, skipping insertion in model container [2021-11-17 03:30:43,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 03:30:43" (3/3) ... [2021-11-17 03:30:43,929 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2021-11-17 03:30:43,934 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 03:30:43,934 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 03:30:43,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 03:30:43,980 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 03:30:43,981 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 03:30:44,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 1134 states, 873 states have (on average 1.4421534936998854) internal successors, (1259), 894 states have internal predecessors, (1259), 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) [2021-11-17 03:30:44,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-17 03:30:44,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:30:44,050 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:30:44,050 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:30:44,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:30:44,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1014089832, now seen corresponding path program 1 times [2021-11-17 03:30:44,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:30:44,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032405536] [2021-11-17 03:30:44,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:30:44,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:30:44,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:30:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:44,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:30:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:44,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:30:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:30:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:30:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:30:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:44,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:30:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:30:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:30:44,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:30:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:30:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:30:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:30:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:30:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:30:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:44,879 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 03:30:44,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:30:44,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032405536] [2021-11-17 03:30:44,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032405536] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:30:44,881 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:30:44,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 03:30:44,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324493722] [2021-11-17 03:30:44,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:30:44,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 03:30:44,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:30:44,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 03:30:44,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 03:30:44,917 INFO L87 Difference]: Start difference. First operand has 1134 states, 873 states have (on average 1.4421534936998854) internal successors, (1259), 894 states have internal predecessors, (1259), 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) [2021-11-17 03:30:49,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:30:51,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:30:51,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:30:51,826 INFO L93 Difference]: Finished difference Result 2290 states and 3434 transitions. [2021-11-17 03:30:51,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 03:30:51,829 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 [2021-11-17 03:30:51,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:30:51,850 INFO L225 Difference]: With dead ends: 2290 [2021-11-17 03:30:51,851 INFO L226 Difference]: Without dead ends: 1149 [2021-11-17 03:30:51,860 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:30:51,863 INFO L933 BasicCegarLoop]: 1540 mSDtfsCounter, 862 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 903 mSolverCounterSat, 546 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 1451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 903 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-17 03:30:51,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 2795 Invalid, 1451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [546 Valid, 903 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-17 03:30:51,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2021-11-17 03:30:51,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1122. [2021-11-17 03:30:51,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 867 states have (on average 1.4359861591695502) internal successors, (1245), 882 states have internal predecessors, (1245), 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) [2021-11-17 03:30:51,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1664 transitions. [2021-11-17 03:30:51,972 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1664 transitions. Word has length 221 [2021-11-17 03:30:51,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:30:51,972 INFO L470 AbstractCegarLoop]: Abstraction has 1122 states and 1664 transitions. [2021-11-17 03:30:51,973 INFO L471 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) [2021-11-17 03:30:51,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1664 transitions. [2021-11-17 03:30:51,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-11-17 03:30:51,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:30:51,976 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:30:51,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 03:30:51,977 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:30:51,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:30:51,978 INFO L85 PathProgramCache]: Analyzing trace with hash -814978680, now seen corresponding path program 1 times [2021-11-17 03:30:51,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:30:51,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593097218] [2021-11-17 03:30:51,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:30:51,979 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:30:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:30:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:52,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:30:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:30:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:52,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:30:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:30:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:30:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:30:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:30:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:30:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:30:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:30:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:30:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:30:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:30:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:30:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:52,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 03:30:52,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:30:52,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593097218] [2021-11-17 03:30:52,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593097218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:30:52,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:30:52,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:30:52,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952814687] [2021-11-17 03:30:52,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:30:52,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:30:52,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:30:52,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:30:52,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:30:52,460 INFO L87 Difference]: Start difference. First operand 1122 states and 1664 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) [2021-11-17 03:30:56,718 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:30:58,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:30:58,036 INFO L93 Difference]: Finished difference Result 3312 states and 4942 transitions. [2021-11-17 03:30:58,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:30:58,037 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 [2021-11-17 03:30:58,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:30:58,053 INFO L225 Difference]: With dead ends: 3312 [2021-11-17 03:30:58,053 INFO L226 Difference]: Without dead ends: 2229 [2021-11-17 03:30:58,058 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:30:58,060 INFO L933 BasicCegarLoop]: 1667 mSDtfsCounter, 3915 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 1663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4043 SdHoareTripleChecker+Valid, 3489 SdHoareTripleChecker+Invalid, 2872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1663 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-17 03:30:58,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4043 Valid, 3489 Invalid, 2872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1663 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-11-17 03:30:58,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2229 states. [2021-11-17 03:30:58,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2229 to 2175. [2021-11-17 03:30:58,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2175 states, 1693 states have (on average 1.442409923213231) internal successors, (2442), 1719 states have internal predecessors, (2442), 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) [2021-11-17 03:30:58,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 3237 transitions. [2021-11-17 03:30:58,160 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 3237 transitions. Word has length 221 [2021-11-17 03:30:58,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:30:58,161 INFO L470 AbstractCegarLoop]: Abstraction has 2175 states and 3237 transitions. [2021-11-17 03:30:58,162 INFO L471 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) [2021-11-17 03:30:58,162 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 3237 transitions. [2021-11-17 03:30:58,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-17 03:30:58,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:30:58,166 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:30:58,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 03:30:58,166 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:30:58,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:30:58,167 INFO L85 PathProgramCache]: Analyzing trace with hash 993586167, now seen corresponding path program 1 times [2021-11-17 03:30:58,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:30:58,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866919314] [2021-11-17 03:30:58,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:30:58,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:30:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:30:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:30:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:30:58,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:58,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:30:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:58,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:30:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:58,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:30:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:30:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:30:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:30:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:30:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:30:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:30:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:30:58,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:30:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:30:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:30:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:30:58,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:30:58,544 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 03:30:58,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:30:58,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866919314] [2021-11-17 03:30:58,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866919314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:30:58,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:30:58,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:30:58,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911429941] [2021-11-17 03:30:58,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:30:58,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:30:58,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:30:58,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:30:58,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:30:58,547 INFO L87 Difference]: Start difference. First operand 2175 states and 3237 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) [2021-11-17 03:31:01,435 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:31:02,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:02,643 INFO L93 Difference]: Finished difference Result 2228 states and 3328 transitions. [2021-11-17 03:31:02,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 03:31:02,644 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 [2021-11-17 03:31:02,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:02,659 INFO L225 Difference]: With dead ends: 2228 [2021-11-17 03:31:02,659 INFO L226 Difference]: Without dead ends: 2225 [2021-11-17 03:31:02,660 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:02,661 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 2690 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 919 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 919 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:02,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2817 Valid, 2163 Invalid, 1429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [919 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-17 03:31:02,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2225 states. [2021-11-17 03:31:02,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2225 to 2174. [2021-11-17 03:31:02,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2174 states, 1693 states have (on average 1.4418192557590077) internal successors, (2441), 1718 states have internal predecessors, (2441), 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) [2021-11-17 03:31:02,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2174 states to 2174 states and 3235 transitions. [2021-11-17 03:31:02,750 INFO L78 Accepts]: Start accepts. Automaton has 2174 states and 3235 transitions. Word has length 224 [2021-11-17 03:31:02,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:02,751 INFO L470 AbstractCegarLoop]: Abstraction has 2174 states and 3235 transitions. [2021-11-17 03:31:02,751 INFO L471 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) [2021-11-17 03:31:02,752 INFO L276 IsEmpty]: Start isEmpty. Operand 2174 states and 3235 transitions. [2021-11-17 03:31:02,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-17 03:31:02,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:02,756 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:02,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 03:31:02,757 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:02,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:02,757 INFO L85 PathProgramCache]: Analyzing trace with hash 736097576, now seen corresponding path program 1 times [2021-11-17 03:31:02,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:02,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89327998] [2021-11-17 03:31:02,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:02,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:02,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:02,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:02,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:03,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:03,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:03,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:03,178 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 03:31:03,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:03,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89327998] [2021-11-17 03:31:03,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89327998] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:03,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:03,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:31:03,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157175662] [2021-11-17 03:31:03,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:03,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:31:03,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:03,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:31:03,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:31:03,181 INFO L87 Difference]: Start difference. First operand 2174 states and 3235 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) [2021-11-17 03:31:07,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:07,873 INFO L93 Difference]: Finished difference Result 2227 states and 3326 transitions. [2021-11-17 03:31:07,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 03:31:07,875 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 [2021-11-17 03:31:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:07,889 INFO L225 Difference]: With dead ends: 2227 [2021-11-17 03:31:07,889 INFO L226 Difference]: Without dead ends: 2224 [2021-11-17 03:31:07,891 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:07,892 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 2254 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 1335 mSolverCounterSat, 646 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 646 IncrementalHoareTripleChecker+Valid, 1335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:07,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2381 Valid, 3312 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [646 Valid, 1335 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-17 03:31:07,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2021-11-17 03:31:07,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2173. [2021-11-17 03:31:07,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 1693 states have (on average 1.4412285883047844) internal successors, (2440), 1717 states have internal predecessors, (2440), 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) [2021-11-17 03:31:07,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 3233 transitions. [2021-11-17 03:31:07,976 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 3233 transitions. Word has length 225 [2021-11-17 03:31:07,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:07,977 INFO L470 AbstractCegarLoop]: Abstraction has 2173 states and 3233 transitions. [2021-11-17 03:31:07,977 INFO L471 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) [2021-11-17 03:31:07,977 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 3233 transitions. [2021-11-17 03:31:07,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-17 03:31:07,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:07,981 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:07,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 03:31:07,981 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:07,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:07,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1343890714, now seen corresponding path program 1 times [2021-11-17 03:31:07,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:07,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365216225] [2021-11-17 03:31:07,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:07,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:08,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:08,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:08,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:08,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:08,356 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 03:31:08,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:08,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365216225] [2021-11-17 03:31:08,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365216225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:08,357 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:08,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:31:08,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722531736] [2021-11-17 03:31:08,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:08,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:31:08,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:08,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:31:08,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:31:08,359 INFO L87 Difference]: Start difference. First operand 2173 states and 3233 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) [2021-11-17 03:31:11,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:11,977 INFO L93 Difference]: Finished difference Result 2226 states and 3324 transitions. [2021-11-17 03:31:11,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 03:31:11,978 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 [2021-11-17 03:31:11,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:11,990 INFO L225 Difference]: With dead ends: 2226 [2021-11-17 03:31:11,991 INFO L226 Difference]: Without dead ends: 2223 [2021-11-17 03:31:11,992 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:11,993 INFO L933 BasicCegarLoop]: 1519 mSDtfsCounter, 2251 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2378 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 1563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:11,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2378 Valid, 2742 Invalid, 1563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-17 03:31:11,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2223 states. [2021-11-17 03:31:12,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2223 to 2172. [2021-11-17 03:31:12,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2172 states, 1693 states have (on average 1.440637920850561) internal successors, (2439), 1716 states have internal predecessors, (2439), 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) [2021-11-17 03:31:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2172 states to 2172 states and 3231 transitions. [2021-11-17 03:31:12,066 INFO L78 Accepts]: Start accepts. Automaton has 2172 states and 3231 transitions. Word has length 226 [2021-11-17 03:31:12,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:12,066 INFO L470 AbstractCegarLoop]: Abstraction has 2172 states and 3231 transitions. [2021-11-17 03:31:12,067 INFO L471 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) [2021-11-17 03:31:12,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2172 states and 3231 transitions. [2021-11-17 03:31:12,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-17 03:31:12,069 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:12,069 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:12,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 03:31:12,070 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:12,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:12,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1289353621, now seen corresponding path program 1 times [2021-11-17 03:31:12,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:12,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306280614] [2021-11-17 03:31:12,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:12,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:12,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:12,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:12,410 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-11-17 03:31:12,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:12,410 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306280614] [2021-11-17 03:31:12,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306280614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:12,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:12,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 03:31:12,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113901928] [2021-11-17 03:31:12,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:12,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 03:31:12,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:12,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 03:31:12,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 03:31:12,413 INFO L87 Difference]: Start difference. First operand 2172 states and 3231 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) [2021-11-17 03:31:15,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:31:19,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:31:21,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:21,219 INFO L93 Difference]: Finished difference Result 4370 states and 6538 transitions. [2021-11-17 03:31:21,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:31:21,219 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 [2021-11-17 03:31:21,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:21,241 INFO L225 Difference]: With dead ends: 4370 [2021-11-17 03:31:21,241 INFO L226 Difference]: Without dead ends: 4359 [2021-11-17 03:31:21,245 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:21,245 INFO L933 BasicCegarLoop]: 1653 mSDtfsCounter, 3076 mSDsluCounter, 2952 mSDsCounter, 0 mSdLazyCounter, 2268 mSolverCounterSat, 1135 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3201 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 3404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1135 IncrementalHoareTripleChecker+Valid, 2268 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:21,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3201 Valid, 4605 Invalid, 3404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1135 Valid, 2268 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-17 03:31:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4359 states. [2021-11-17 03:31:21,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4359 to 4260. [2021-11-17 03:31:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 3332 states have (on average 1.445078031212485) internal successors, (4815), 3375 states have internal predecessors, (4815), 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) [2021-11-17 03:31:21,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 6353 transitions. [2021-11-17 03:31:21,402 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 6353 transitions. Word has length 227 [2021-11-17 03:31:21,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:21,403 INFO L470 AbstractCegarLoop]: Abstraction has 4260 states and 6353 transitions. [2021-11-17 03:31:21,403 INFO L471 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) [2021-11-17 03:31:21,404 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 6353 transitions. [2021-11-17 03:31:21,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2021-11-17 03:31:21,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:21,417 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:21,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 03:31:21,417 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:21,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:21,418 INFO L85 PathProgramCache]: Analyzing trace with hash -581469749, now seen corresponding path program 1 times [2021-11-17 03:31:21,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:21,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904385816] [2021-11-17 03:31:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:21,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:21,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:21,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:21,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:21,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:21,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:21,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:21,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:21,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 03:31:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 03:31:21,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 03:31:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 03:31:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:31:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-11-17 03:31:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-11-17 03:31:21,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2021-11-17 03:31:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 03:31:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 596 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2021-11-17 03:31:21,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:21,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904385816] [2021-11-17 03:31:21,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904385816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:21,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:21,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:31:21,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409815691] [2021-11-17 03:31:21,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:21,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:31:21,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:21,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:31:21,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:31:21,819 INFO L87 Difference]: Start difference. First operand 4260 states and 6353 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) [2021-11-17 03:31:26,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:26,199 INFO L93 Difference]: Finished difference Result 8771 states and 13091 transitions. [2021-11-17 03:31:26,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 03:31:26,200 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 [2021-11-17 03:31:26,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:26,221 INFO L225 Difference]: With dead ends: 8771 [2021-11-17 03:31:26,222 INFO L226 Difference]: Without dead ends: 4550 [2021-11-17 03:31:26,237 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:26,237 INFO L933 BasicCegarLoop]: 1507 mSDtfsCounter, 1536 mSDsluCounter, 3296 mSDsCounter, 0 mSdLazyCounter, 2383 mSolverCounterSat, 841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1581 SdHoareTripleChecker+Valid, 4803 SdHoareTripleChecker+Invalid, 3224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 2383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:26,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1581 Valid, 4803 Invalid, 3224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [841 Valid, 2383 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-17 03:31:26,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4550 states. [2021-11-17 03:31:26,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4550 to 4438. [2021-11-17 03:31:26,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4438 states, 3484 states have (on average 1.444316877152698) internal successors, (5032), 3527 states have internal predecessors, (5032), 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) [2021-11-17 03:31:26,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4438 states to 4438 states and 6606 transitions. [2021-11-17 03:31:26,395 INFO L78 Accepts]: Start accepts. Automaton has 4438 states and 6606 transitions. Word has length 333 [2021-11-17 03:31:26,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:26,395 INFO L470 AbstractCegarLoop]: Abstraction has 4438 states and 6606 transitions. [2021-11-17 03:31:26,396 INFO L471 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) [2021-11-17 03:31:26,396 INFO L276 IsEmpty]: Start isEmpty. Operand 4438 states and 6606 transitions. [2021-11-17 03:31:26,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-11-17 03:31:26,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:26,412 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:26,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 03:31:26,413 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:26,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:26,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1932336199, now seen corresponding path program 1 times [2021-11-17 03:31:26,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:26,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916113717] [2021-11-17 03:31:26,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:26,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:26,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:26,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:26,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:26,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:31:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:31:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:31:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:31:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:31:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:31:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 03:31:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 03:31:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 03:31:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 03:31:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:31:26,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:26,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916113717] [2021-11-17 03:31:26,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916113717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:26,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:26,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:31:26,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422627603] [2021-11-17 03:31:26,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:26,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:31:26,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:26,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:31:26,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:31:26,796 INFO L87 Difference]: Start difference. First operand 4438 states and 6606 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) [2021-11-17 03:31:30,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:30,057 INFO L93 Difference]: Finished difference Result 8925 states and 13322 transitions. [2021-11-17 03:31:30,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:31:30,058 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 [2021-11-17 03:31:30,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:30,078 INFO L225 Difference]: With dead ends: 8925 [2021-11-17 03:31:30,078 INFO L226 Difference]: Without dead ends: 4544 [2021-11-17 03:31:30,091 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:30,092 INFO L933 BasicCegarLoop]: 1489 mSDtfsCounter, 1820 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 1358 mSolverCounterSat, 1074 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 2432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1074 IncrementalHoareTripleChecker+Valid, 1358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:30,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1843 Valid, 3825 Invalid, 2432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1074 Valid, 1358 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-17 03:31:30,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4544 states. [2021-11-17 03:31:30,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4544 to 4442. [2021-11-17 03:31:30,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4442 states, 3488 states have (on average 1.4438073394495412) internal successors, (5036), 3531 states have internal predecessors, (5036), 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) [2021-11-17 03:31:30,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4442 states to 4442 states and 6610 transitions. [2021-11-17 03:31:30,236 INFO L78 Accepts]: Start accepts. Automaton has 4442 states and 6610 transitions. Word has length 358 [2021-11-17 03:31:30,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:30,237 INFO L470 AbstractCegarLoop]: Abstraction has 4442 states and 6610 transitions. [2021-11-17 03:31:30,237 INFO L471 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) [2021-11-17 03:31:30,237 INFO L276 IsEmpty]: Start isEmpty. Operand 4442 states and 6610 transitions. [2021-11-17 03:31:30,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2021-11-17 03:31:30,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:30,260 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:30,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 03:31:30,260 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:30,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:30,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1305899895, now seen corresponding path program 1 times [2021-11-17 03:31:30,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:30,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454991014] [2021-11-17 03:31:30,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:30,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:30,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:30,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:30,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:30,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:31:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:31:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:31:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:31:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:31:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:31:30,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 03:31:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2021-11-17 03:31:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 03:31:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-11-17 03:31:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:31:30,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:30,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454991014] [2021-11-17 03:31:30,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454991014] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:30,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:30,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:31:30,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039275690] [2021-11-17 03:31:30,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:30,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:31:30,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:30,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:31:30,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:31:30,703 INFO L87 Difference]: Start difference. First operand 4442 states and 6610 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) [2021-11-17 03:31:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:35,833 INFO L93 Difference]: Finished difference Result 11501 states and 17584 transitions. [2021-11-17 03:31:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 03:31:35,834 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 [2021-11-17 03:31:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:35,871 INFO L225 Difference]: With dead ends: 11501 [2021-11-17 03:31:35,871 INFO L226 Difference]: Without dead ends: 7116 [2021-11-17 03:31:35,888 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:35,889 INFO L933 BasicCegarLoop]: 2059 mSDtfsCounter, 2792 mSDsluCounter, 4786 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2940 SdHoareTripleChecker+Valid, 6845 SdHoareTripleChecker+Invalid, 3559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:35,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2940 Valid, 6845 Invalid, 3559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1216 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-11-17 03:31:35,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7116 states. [2021-11-17 03:31:36,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7116 to 4450. [2021-11-17 03:31:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 3496 states have (on average 1.44279176201373) internal successors, (5044), 3539 states have internal predecessors, (5044), 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) [2021-11-17 03:31:36,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 6618 transitions. [2021-11-17 03:31:36,108 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 6618 transitions. Word has length 358 [2021-11-17 03:31:36,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:36,108 INFO L470 AbstractCegarLoop]: Abstraction has 4450 states and 6618 transitions. [2021-11-17 03:31:36,109 INFO L471 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) [2021-11-17 03:31:36,109 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 6618 transitions. [2021-11-17 03:31:36,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-17 03:31:36,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:36,121 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:36,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 03:31:36,122 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:36,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:36,122 INFO L85 PathProgramCache]: Analyzing trace with hash -893982665, now seen corresponding path program 1 times [2021-11-17 03:31:36,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:36,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033787259] [2021-11-17 03:31:36,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:36,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:36,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:36,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:36,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:36,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:36,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:36,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:31:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:36,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:31:36,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:31:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:31:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:31:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:31:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 03:31:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-11-17 03:31:36,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-11-17 03:31:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-11-17 03:31:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:31:36,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:36,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033787259] [2021-11-17 03:31:36,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033787259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:36,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:36,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:31:36,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759615082] [2021-11-17 03:31:36,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:36,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:31:36,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:36,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:31:36,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:31:36,514 INFO L87 Difference]: Start difference. First operand 4450 states and 6618 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) [2021-11-17 03:31:42,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:42,361 INFO L93 Difference]: Finished difference Result 11537 states and 17616 transitions. [2021-11-17 03:31:42,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 03:31:42,361 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 [2021-11-17 03:31:42,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:42,396 INFO L225 Difference]: With dead ends: 11537 [2021-11-17 03:31:42,397 INFO L226 Difference]: Without dead ends: 7144 [2021-11-17 03:31:42,415 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:42,416 INFO L933 BasicCegarLoop]: 2092 mSDtfsCounter, 2377 mSDsluCounter, 5590 mSDsCounter, 0 mSdLazyCounter, 2967 mSolverCounterSat, 956 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2486 SdHoareTripleChecker+Valid, 7682 SdHoareTripleChecker+Invalid, 3923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 956 IncrementalHoareTripleChecker+Valid, 2967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:42,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2486 Valid, 7682 Invalid, 3923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [956 Valid, 2967 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-11-17 03:31:42,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7144 states. [2021-11-17 03:31:42,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7144 to 4458. [2021-11-17 03:31:42,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4458 states, 3504 states have (on average 1.4417808219178083) internal successors, (5052), 3547 states have internal predecessors, (5052), 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) [2021-11-17 03:31:42,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4458 states to 4458 states and 6626 transitions. [2021-11-17 03:31:42,663 INFO L78 Accepts]: Start accepts. Automaton has 4458 states and 6626 transitions. Word has length 377 [2021-11-17 03:31:42,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:42,664 INFO L470 AbstractCegarLoop]: Abstraction has 4458 states and 6626 transitions. [2021-11-17 03:31:42,664 INFO L471 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) [2021-11-17 03:31:42,664 INFO L276 IsEmpty]: Start isEmpty. Operand 4458 states and 6626 transitions. [2021-11-17 03:31:42,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-11-17 03:31:42,677 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:42,678 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:42,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 03:31:42,678 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:42,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:42,679 INFO L85 PathProgramCache]: Analyzing trace with hash -952720224, now seen corresponding path program 1 times [2021-11-17 03:31:42,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:42,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639859497] [2021-11-17 03:31:42,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:42,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:42,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:42,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:42,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:42,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:42,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:43,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:31:43,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:43,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:31:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:31:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:31:43,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:31:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:31:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 03:31:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 03:31:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-17 03:31:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-17 03:31:43,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:31:43,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:43,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639859497] [2021-11-17 03:31:43,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639859497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:43,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:43,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:31:43,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322437730] [2021-11-17 03:31:43,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:43,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:31:43,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:43,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:31:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:31:43,072 INFO L87 Difference]: Start difference. First operand 4458 states and 6626 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) [2021-11-17 03:31:49,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:31:49,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:49,178 INFO L93 Difference]: Finished difference Result 8965 states and 13362 transitions. [2021-11-17 03:31:49,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:31:49,178 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 [2021-11-17 03:31:49,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:49,192 INFO L225 Difference]: With dead ends: 8965 [2021-11-17 03:31:49,192 INFO L226 Difference]: Without dead ends: 4564 [2021-11-17 03:31:49,203 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:49,203 INFO L933 BasicCegarLoop]: 1490 mSDtfsCounter, 1388 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 812 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 4351 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:49,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1411 Valid, 4351 Invalid, 2634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 1821 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2021-11-17 03:31:49,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2021-11-17 03:31:49,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 4462. [2021-11-17 03:31:49,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4462 states, 3508 states have (on average 1.4412770809578108) internal successors, (5056), 3551 states have internal predecessors, (5056), 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) [2021-11-17 03:31:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4462 states to 4462 states and 6630 transitions. [2021-11-17 03:31:49,343 INFO L78 Accepts]: Start accepts. Automaton has 4462 states and 6630 transitions. Word has length 378 [2021-11-17 03:31:49,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:49,344 INFO L470 AbstractCegarLoop]: Abstraction has 4462 states and 6630 transitions. [2021-11-17 03:31:49,344 INFO L471 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) [2021-11-17 03:31:49,344 INFO L276 IsEmpty]: Start isEmpty. Operand 4462 states and 6630 transitions. [2021-11-17 03:31:49,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-11-17 03:31:49,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:49,356 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:49,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 03:31:49,356 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:49,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:49,357 INFO L85 PathProgramCache]: Analyzing trace with hash 955737566, now seen corresponding path program 1 times [2021-11-17 03:31:49,357 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:49,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782372747] [2021-11-17 03:31:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:49,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:49,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:49,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:49,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:49,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:49,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:49,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:31:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:31:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:31:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:31:49,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:31:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:49,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:31:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 325 [2021-11-17 03:31:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 03:31:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-17 03:31:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-17 03:31:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:49,738 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:31:49,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:49,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782372747] [2021-11-17 03:31:49,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782372747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:49,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:49,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 03:31:49,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099786027] [2021-11-17 03:31:49,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:49,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 03:31:49,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:49,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 03:31:49,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 03:31:49,741 INFO L87 Difference]: Start difference. First operand 4462 states and 6630 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) [2021-11-17 03:31:52,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:31:56,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:31:56,609 INFO L93 Difference]: Finished difference Result 11383 states and 17273 transitions. [2021-11-17 03:31:56,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 03:31:56,610 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 [2021-11-17 03:31:56,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:31:56,630 INFO L225 Difference]: With dead ends: 11383 [2021-11-17 03:31:56,630 INFO L226 Difference]: Without dead ends: 6978 [2021-11-17 03:31:56,642 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:31:56,643 INFO L933 BasicCegarLoop]: 2131 mSDtfsCounter, 2084 mSDsluCounter, 4088 mSDsCounter, 0 mSdLazyCounter, 2345 mSolverCounterSat, 922 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 6219 SdHoareTripleChecker+Invalid, 3268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 922 IncrementalHoareTripleChecker+Valid, 2345 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-17 03:31:56,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2232 Valid, 6219 Invalid, 3268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [922 Valid, 2345 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-17 03:31:56,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6978 states. [2021-11-17 03:31:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6978 to 4602. [2021-11-17 03:31:56,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 3620 states have (on average 1.4397790055248618) internal successors, (5212), 3663 states have internal predecessors, (5212), 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) [2021-11-17 03:31:56,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6842 transitions. [2021-11-17 03:31:56,835 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6842 transitions. Word has length 378 [2021-11-17 03:31:56,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:31:56,835 INFO L470 AbstractCegarLoop]: Abstraction has 4602 states and 6842 transitions. [2021-11-17 03:31:56,836 INFO L471 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) [2021-11-17 03:31:56,836 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6842 transitions. [2021-11-17 03:31:56,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-11-17 03:31:56,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:31:56,848 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:31:56,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 03:31:56,849 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:31:56,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:31:56,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1816451105, now seen corresponding path program 1 times [2021-11-17 03:31:56,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:31:56,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191134619] [2021-11-17 03:31:56,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:31:56,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:31:56,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:31:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:57,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:31:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:31:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:31:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:31:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:57,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:31:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:31:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:31:57,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:31:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:31:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:31:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:31:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:31:57,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:31:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:31:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:31:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:31:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:31:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:31:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:31:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:31:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:31:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:31:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-11-17 03:31:57,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-11-17 03:31:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-11-17 03:31:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2021-11-17 03:31:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:31:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:31:57,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:31:57,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191134619] [2021-11-17 03:31:57,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191134619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:31:57,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:31:57,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:31:57,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638343128] [2021-11-17 03:31:57,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:31:57,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:31:57,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:31:57,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:31:57,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:31:57,277 INFO L87 Difference]: Start difference. First operand 4602 states and 6842 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) [2021-11-17 03:32:02,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:32:02,000 INFO L93 Difference]: Finished difference Result 12337 states and 18908 transitions. [2021-11-17 03:32:02,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 03:32:02,000 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 [2021-11-17 03:32:02,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:32:02,028 INFO L225 Difference]: With dead ends: 12337 [2021-11-17 03:32:02,028 INFO L226 Difference]: Without dead ends: 7792 [2021-11-17 03:32:02,040 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:32:02,041 INFO L933 BasicCegarLoop]: 2256 mSDtfsCounter, 2967 mSDsluCounter, 5261 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 1191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3140 SdHoareTripleChecker+Valid, 7517 SdHoareTripleChecker+Invalid, 3662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1191 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-17 03:32:02,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3140 Valid, 7517 Invalid, 3662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1191 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-17 03:32:02,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7792 states. [2021-11-17 03:32:02,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7792 to 4610. [2021-11-17 03:32:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4610 states, 3628 states have (on average 1.4388092613009922) internal successors, (5220), 3671 states have internal predecessors, (5220), 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) [2021-11-17 03:32:02,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4610 states to 4610 states and 6850 transitions. [2021-11-17 03:32:02,245 INFO L78 Accepts]: Start accepts. Automaton has 4610 states and 6850 transitions. Word has length 379 [2021-11-17 03:32:02,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:32:02,245 INFO L470 AbstractCegarLoop]: Abstraction has 4610 states and 6850 transitions. [2021-11-17 03:32:02,245 INFO L471 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) [2021-11-17 03:32:02,246 INFO L276 IsEmpty]: Start isEmpty. Operand 4610 states and 6850 transitions. [2021-11-17 03:32:02,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-11-17 03:32:02,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:32:02,257 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:32:02,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 03:32:02,257 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:32:02,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:32:02,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1348571080, now seen corresponding path program 1 times [2021-11-17 03:32:02,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:32:02,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256352856] [2021-11-17 03:32:02,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:32:02,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:32:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:32:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:32:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:32:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:32:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:32:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:32:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:32:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:32:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:32:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:32:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:32:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:32:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:32:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:32:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:32:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:32:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:32:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:32:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:32:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:32:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:32:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 03:32:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 03:32:02,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 03:32:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 03:32:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:32:02,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:32:02,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256352856] [2021-11-17 03:32:02,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256352856] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:32:02,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972069492] [2021-11-17 03:32:02,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:32:02,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:32:02,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:32:02,739 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) [2021-11-17 03:32:02,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 03:32:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:03,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 3591 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-17 03:32:03,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:32:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:32:04,180 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:32:04,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972069492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:32:04,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:32:04,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2021-11-17 03:32:04,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307479559] [2021-11-17 03:32:04,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:32:04,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 03:32:04,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:32:04,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 03:32:04,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-17 03:32:04,183 INFO L87 Difference]: Start difference. First operand 4610 states and 6850 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) [2021-11-17 03:32:04,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:32:04,426 INFO L93 Difference]: Finished difference Result 11737 states and 17732 transitions. [2021-11-17 03:32:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 03:32:04,427 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 [2021-11-17 03:32:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:32:04,456 INFO L225 Difference]: With dead ends: 11737 [2021-11-17 03:32:04,457 INFO L226 Difference]: Without dead ends: 7184 [2021-11-17 03:32:04,503 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:32:04,504 INFO L933 BasicCegarLoop]: 2288 mSDtfsCounter, 694 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 6305 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 [2021-11-17 03:32:04,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [807 Valid, 6305 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 03:32:04,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7184 states. [2021-11-17 03:32:04,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7184 to 4898. [2021-11-17 03:32:04,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4898 states, 3860 states have (on average 1.4362694300518135) internal successors, (5544), 3903 states have internal predecessors, (5544), 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) [2021-11-17 03:32:04,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4898 states to 4898 states and 7286 transitions. [2021-11-17 03:32:04,719 INFO L78 Accepts]: Start accepts. Automaton has 4898 states and 7286 transitions. Word has length 380 [2021-11-17 03:32:04,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:32:04,720 INFO L470 AbstractCegarLoop]: Abstraction has 4898 states and 7286 transitions. [2021-11-17 03:32:04,720 INFO L471 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) [2021-11-17 03:32:04,720 INFO L276 IsEmpty]: Start isEmpty. Operand 4898 states and 7286 transitions. [2021-11-17 03:32:04,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-11-17 03:32:04,732 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:32:04,733 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:32:04,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-17 03:32:04,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-17 03:32:04,954 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:32:04,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:32:04,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1294178182, now seen corresponding path program 1 times [2021-11-17 03:32:04,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:32:04,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510688876] [2021-11-17 03:32:04,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:32:04,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:32:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:32:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:32:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:05,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:32:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:32:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:32:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:32:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:05,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:32:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:32:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:32:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:32:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:32:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:32:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:32:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:32:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:32:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:32:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:05,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:32:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:32:05,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:32:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:32:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:05,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:32:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 03:32:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 03:32:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 03:32:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 03:32:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:05,457 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:32:05,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:32:05,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510688876] [2021-11-17 03:32:05,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510688876] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:32:05,458 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341416452] [2021-11-17 03:32:05,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:32:05,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:32:05,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:32:05,460 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) [2021-11-17 03:32:05,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 03:32:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:06,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 3588 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 03:32:06,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:32:06,924 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2021-11-17 03:32:06,925 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 03:32:06,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341416452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:32:06,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 03:32:06,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 9 [2021-11-17 03:32:06,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171993566] [2021-11-17 03:32:06,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:32:06,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 03:32:06,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:32:06,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 03:32:06,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-17 03:32:06,927 INFO L87 Difference]: Start difference. First operand 4898 states and 7286 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) [2021-11-17 03:32:08,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:32:08,319 INFO L93 Difference]: Finished difference Result 14586 states and 21721 transitions. [2021-11-17 03:32:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 03:32:08,320 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 [2021-11-17 03:32:08,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:32:08,372 INFO L225 Difference]: With dead ends: 14586 [2021-11-17 03:32:08,373 INFO L226 Difference]: Without dead ends: 14576 [2021-11-17 03:32:08,383 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:32:08,383 INFO L933 BasicCegarLoop]: 3435 mSDtfsCounter, 3097 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3097 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:32:08,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3097 Valid, 6263 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-17 03:32:08,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14576 states. [2021-11-17 03:32:08,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14576 to 14542. [2021-11-17 03:32:08,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14542 states, 11480 states have (on average 1.4397212543554008) internal successors, (16528), 11623 states have internal predecessors, (16528), 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) [2021-11-17 03:32:08,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14542 states to 14542 states and 21678 transitions. [2021-11-17 03:32:08,986 INFO L78 Accepts]: Start accepts. Automaton has 14542 states and 21678 transitions. Word has length 380 [2021-11-17 03:32:08,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:32:08,986 INFO L470 AbstractCegarLoop]: Abstraction has 14542 states and 21678 transitions. [2021-11-17 03:32:08,987 INFO L471 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) [2021-11-17 03:32:08,987 INFO L276 IsEmpty]: Start isEmpty. Operand 14542 states and 21678 transitions. [2021-11-17 03:32:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-11-17 03:32:09,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:32:09,015 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:32:09,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-17 03:32:09,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-17 03:32:09,237 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:32:09,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:32:09,238 INFO L85 PathProgramCache]: Analyzing trace with hash 273109828, now seen corresponding path program 1 times [2021-11-17 03:32:09,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:32:09,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122632878] [2021-11-17 03:32:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:32:09,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:32:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:32:09,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:32:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:32:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:32:09,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:32:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:32:09,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:32:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:09,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:32:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:32:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:32:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:32:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:32:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:32:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:32:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:32:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:32:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:32:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:32:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:32:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:32:09,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:09,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:32:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 03:32:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 03:32:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 03:32:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 03:32:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:32:09,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:32:09,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122632878] [2021-11-17 03:32:09,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122632878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:32:09,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:32:09,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:32:09,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140647797] [2021-11-17 03:32:09,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:32:09,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:32:09,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:32:09,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:32:09,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:32:09,691 INFO L87 Difference]: Start difference. First operand 14542 states and 21678 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) [2021-11-17 03:32:17,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:32:17,707 INFO L93 Difference]: Finished difference Result 38330 states and 57582 transitions. [2021-11-17 03:32:17,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 03:32:17,708 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 [2021-11-17 03:32:17,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:32:17,812 INFO L225 Difference]: With dead ends: 38330 [2021-11-17 03:32:17,812 INFO L226 Difference]: Without dead ends: 31031 [2021-11-17 03:32:17,850 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:32:17,851 INFO L933 BasicCegarLoop]: 1906 mSDtfsCounter, 5238 mSDsluCounter, 3987 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 2404 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5405 SdHoareTripleChecker+Valid, 5893 SdHoareTripleChecker+Invalid, 4973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2404 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-17 03:32:17,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5405 Valid, 5893 Invalid, 4973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2404 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-11-17 03:32:17,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31031 states. [2021-11-17 03:32:18,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31031 to 14548. [2021-11-17 03:32:18,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14548 states, 11486 states have (on average 1.4394915549364444) internal successors, (16534), 11631 states have internal predecessors, (16534), 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) [2021-11-17 03:32:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14548 states to 14548 states and 21684 transitions. [2021-11-17 03:32:18,831 INFO L78 Accepts]: Start accepts. Automaton has 14548 states and 21684 transitions. Word has length 380 [2021-11-17 03:32:18,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:32:18,832 INFO L470 AbstractCegarLoop]: Abstraction has 14548 states and 21684 transitions. [2021-11-17 03:32:18,832 INFO L471 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) [2021-11-17 03:32:18,832 INFO L276 IsEmpty]: Start isEmpty. Operand 14548 states and 21684 transitions. [2021-11-17 03:32:18,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-17 03:32:18,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:32:18,855 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:32:18,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 03:32:18,856 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:32:18,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:32:18,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1941666825, now seen corresponding path program 1 times [2021-11-17 03:32:18,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:32:18,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481936834] [2021-11-17 03:32:18,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:32:18,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:32:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:32:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:32:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:32:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:32:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:32:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:32:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:32:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:32:19,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:19,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:32:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:32:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:32:19,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:32:19,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:32:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:32:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:32:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:32:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 03:32:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 03:32:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 03:32:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 03:32:19,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 03:32:19,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-11-17 03:32:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-11-17 03:32:19,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-11-17 03:32:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-11-17 03:32:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:19,279 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:32:19,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:32:19,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481936834] [2021-11-17 03:32:19,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481936834] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:32:19,279 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:32:19,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 03:32:19,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048319585] [2021-11-17 03:32:19,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:32:19,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 03:32:19,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:32:19,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 03:32:19,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-17 03:32:19,282 INFO L87 Difference]: Start difference. First operand 14548 states and 21684 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) [2021-11-17 03:32:23,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:32:23,788 INFO L93 Difference]: Finished difference Result 37881 states and 57583 transitions. [2021-11-17 03:32:23,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 03:32:23,789 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 [2021-11-17 03:32:23,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:32:23,841 INFO L225 Difference]: With dead ends: 37881 [2021-11-17 03:32:23,841 INFO L226 Difference]: Without dead ends: 23390 [2021-11-17 03:32:23,874 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:32:23,874 INFO L933 BasicCegarLoop]: 1881 mSDtfsCounter, 2610 mSDsluCounter, 3737 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 1395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2735 SdHoareTripleChecker+Valid, 5618 SdHoareTripleChecker+Invalid, 3298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 1903 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-17 03:32:23,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2735 Valid, 5618 Invalid, 3298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1395 Valid, 1903 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-17 03:32:23,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23390 states. [2021-11-17 03:32:24,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23390 to 14560. [2021-11-17 03:32:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14560 states, 11498 states have (on average 1.4390328752826578) internal successors, (16546), 11643 states have internal predecessors, (16546), 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) [2021-11-17 03:32:24,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14560 states to 14560 states and 21696 transitions. [2021-11-17 03:32:24,565 INFO L78 Accepts]: Start accepts. Automaton has 14560 states and 21696 transitions. Word has length 381 [2021-11-17 03:32:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:32:24,566 INFO L470 AbstractCegarLoop]: Abstraction has 14560 states and 21696 transitions. [2021-11-17 03:32:24,566 INFO L471 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) [2021-11-17 03:32:24,566 INFO L276 IsEmpty]: Start isEmpty. Operand 14560 states and 21696 transitions. [2021-11-17 03:32:24,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-11-17 03:32:24,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:32:24,585 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:32:24,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 03:32:24,585 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:32:24,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:32:24,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1972531690, now seen corresponding path program 1 times [2021-11-17 03:32:24,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:32:24,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026817075] [2021-11-17 03:32:24,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:32:24,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:32:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:24,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:32:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:24,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:24,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:32:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:24,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:32:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:32:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:25,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:32:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:32:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:32:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:32:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:32:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:32:25,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:32:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:32:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:32:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:32:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:32:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:32:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 03:32:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 03:32:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 03:32:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-17 03:32:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 03:32:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 03:32:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 03:32:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 03:32:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 03:32:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:25,509 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2021-11-17 03:32:25,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:32:25,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026817075] [2021-11-17 03:32:25,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026817075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:32:25,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:32:25,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-11-17 03:32:25,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94277981] [2021-11-17 03:32:25,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:32:25,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-17 03:32:25,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:32:25,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-17 03:32:25,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=377, Unknown=0, NotChecked=0, Total=420 [2021-11-17 03:32:25,512 INFO L87 Difference]: Start difference. First operand 14560 states and 21696 transitions. Second operand has 21 states, 21 states have (on average 8.095238095238095) internal successors, (170), 14 states have internal predecessors, (170), 6 states have call successors, (32), 7 states have call predecessors, (32), 3 states have return successors, (31), 8 states have call predecessors, (31), 6 states have call successors, (31) [2021-11-17 03:32:29,483 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:32:43,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:32:43,215 INFO L93 Difference]: Finished difference Result 34489 states and 53151 transitions. [2021-11-17 03:32:43,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-17 03:32:43,215 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 8.095238095238095) internal successors, (170), 14 states have internal predecessors, (170), 6 states have call successors, (32), 7 states have call predecessors, (32), 3 states have return successors, (31), 8 states have call predecessors, (31), 6 states have call successors, (31) Word has length 383 [2021-11-17 03:32:43,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:32:43,291 INFO L225 Difference]: With dead ends: 34489 [2021-11-17 03:32:43,291 INFO L226 Difference]: Without dead ends: 27148 [2021-11-17 03:32:43,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 417 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=291, Invalid=2061, Unknown=0, NotChecked=0, Total=2352 [2021-11-17 03:32:43,317 INFO L933 BasicCegarLoop]: 2020 mSDtfsCounter, 6818 mSDsluCounter, 20733 mSDsCounter, 0 mSdLazyCounter, 13216 mSolverCounterSat, 2984 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6877 SdHoareTripleChecker+Valid, 22753 SdHoareTripleChecker+Invalid, 16200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2984 IncrementalHoareTripleChecker+Valid, 13216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2021-11-17 03:32:43,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6877 Valid, 22753 Invalid, 16200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2984 Valid, 13216 Invalid, 0 Unknown, 0 Unchecked, 15.9s Time] [2021-11-17 03:32:43,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27148 states. [2021-11-17 03:32:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27148 to 19717. [2021-11-17 03:32:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19717 states, 15744 states have (on average 1.4526803861788617) internal successors, (22871), 15890 states have internal predecessors, (22871), 3483 states have call successors, (3483), 496 states have call predecessors, (3483), 489 states have return successors, (3481), 3408 states have call predecessors, (3481), 3481 states have call successors, (3481) [2021-11-17 03:32:44,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19717 states to 19717 states and 29835 transitions. [2021-11-17 03:32:44,394 INFO L78 Accepts]: Start accepts. Automaton has 19717 states and 29835 transitions. Word has length 383 [2021-11-17 03:32:44,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:32:44,394 INFO L470 AbstractCegarLoop]: Abstraction has 19717 states and 29835 transitions. [2021-11-17 03:32:44,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 8.095238095238095) internal successors, (170), 14 states have internal predecessors, (170), 6 states have call successors, (32), 7 states have call predecessors, (32), 3 states have return successors, (31), 8 states have call predecessors, (31), 6 states have call successors, (31) [2021-11-17 03:32:44,394 INFO L276 IsEmpty]: Start isEmpty. Operand 19717 states and 29835 transitions. [2021-11-17 03:32:44,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-11-17 03:32:44,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:32:44,422 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:32:44,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 03:32:44,422 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:32:44,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:32:44,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1425042328, now seen corresponding path program 1 times [2021-11-17 03:32:44,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:32:44,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6417669] [2021-11-17 03:32:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:32:44,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:32:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:32:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:44,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:32:44,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:32:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:32:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:32:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:32:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:32:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:32:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:32:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:32:44,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:32:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:32:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:32:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:32:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:32:44,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:32:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 03:32:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 03:32:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 03:32:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:44,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-11-17 03:32:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 03:32:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-11-17 03:32:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:45,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-11-17 03:32:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 03:32:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:45,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 03:32:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:45,188 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:32:45,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:32:45,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6417669] [2021-11-17 03:32:45,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6417669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:32:45,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:32:45,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-17 03:32:45,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065134248] [2021-11-17 03:32:45,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:32:45,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-17 03:32:45,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:32:45,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-17 03:32:45,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2021-11-17 03:32:45,190 INFO L87 Difference]: Start difference. First operand 19717 states and 29835 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) [2021-11-17 03:32:57,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:32:57,386 INFO L93 Difference]: Finished difference Result 40510 states and 61971 transitions. [2021-11-17 03:32:57,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-17 03:32:57,387 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 [2021-11-17 03:32:57,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:32:57,441 INFO L225 Difference]: With dead ends: 40510 [2021-11-17 03:32:57,441 INFO L226 Difference]: Without dead ends: 20907 [2021-11-17 03:32:57,476 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:32:57,476 INFO L933 BasicCegarLoop]: 1941 mSDtfsCounter, 3313 mSDsluCounter, 18843 mSDsCounter, 0 mSdLazyCounter, 8111 mSolverCounterSat, 1589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3376 SdHoareTripleChecker+Valid, 20784 SdHoareTripleChecker+Invalid, 9700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1589 IncrementalHoareTripleChecker+Valid, 8111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-11-17 03:32:57,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3376 Valid, 20784 Invalid, 9700 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1589 Valid, 8111 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2021-11-17 03:32:57,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20907 states. [2021-11-17 03:32:58,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20907 to 14665. [2021-11-17 03:32:58,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14665 states, 11580 states have (on average 1.4372193436960277) internal successors, (16643), 11726 states have internal predecessors, (16643), 2595 states have call successors, (2595), 496 states have call predecessors, (2595), 489 states have return successors, (2593), 2520 states have call predecessors, (2593), 2593 states have call successors, (2593) [2021-11-17 03:32:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14665 states to 14665 states and 21831 transitions. [2021-11-17 03:32:58,343 INFO L78 Accepts]: Start accepts. Automaton has 14665 states and 21831 transitions. Word has length 383 [2021-11-17 03:32:58,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:32:58,344 INFO L470 AbstractCegarLoop]: Abstraction has 14665 states and 21831 transitions. [2021-11-17 03:32:58,344 INFO L471 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) [2021-11-17 03:32:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 14665 states and 21831 transitions. [2021-11-17 03:32:58,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-11-17 03:32:58,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:32:58,362 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:32:58,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 03:32:58,363 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:32:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:32:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash -160902097, now seen corresponding path program 1 times [2021-11-17 03:32:58,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:32:58,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594808962] [2021-11-17 03:32:58,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:32:58,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:32:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:32:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:32:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:32:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:32:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:32:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:32:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:32:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:32:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:58,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:32:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:32:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:32:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:32:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:32:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:32:58,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:32:58,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:32:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:32:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 03:32:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 03:32:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 03:32:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 03:32:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:32:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 03:32:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2021-11-17 03:32:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2021-11-17 03:32:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-11-17 03:32:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-11-17 03:32:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:32:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:32:58,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:32:58,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594808962] [2021-11-17 03:32:58,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594808962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:32:58,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:32:58,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-17 03:32:58,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807871482] [2021-11-17 03:32:58,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:32:58,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-17 03:32:58,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:32:58,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-17 03:32:58,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-17 03:32:58,891 INFO L87 Difference]: Start difference. First operand 14665 states and 21831 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) [2021-11-17 03:33:01,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:33:08,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:33:08,322 INFO L93 Difference]: Finished difference Result 41134 states and 62901 transitions. [2021-11-17 03:33:08,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 03:33:08,322 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 [2021-11-17 03:33:08,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:33:08,399 INFO L225 Difference]: With dead ends: 41134 [2021-11-17 03:33:08,400 INFO L226 Difference]: Without dead ends: 26583 [2021-11-17 03:33:08,434 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:33:08,435 INFO L933 BasicCegarLoop]: 1970 mSDtfsCounter, 5922 mSDsluCounter, 11545 mSDsCounter, 0 mSdLazyCounter, 5460 mSolverCounterSat, 2384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5923 SdHoareTripleChecker+Valid, 13515 SdHoareTripleChecker+Invalid, 7844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2384 IncrementalHoareTripleChecker+Valid, 5460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:33:08,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5923 Valid, 13515 Invalid, 7844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2384 Valid, 5460 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2021-11-17 03:33:08,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26583 states. [2021-11-17 03:33:09,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26583 to 14749. [2021-11-17 03:33:09,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14749 states, 11652 states have (on average 1.4345176793683487) internal successors, (16715), 11798 states have internal predecessors, (16715), 2595 states have call successors, (2595), 496 states have call predecessors, (2595), 501 states have return successors, (2653), 2532 states have call predecessors, (2653), 2593 states have call successors, (2653) [2021-11-17 03:33:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14749 states to 14749 states and 21963 transitions. [2021-11-17 03:33:09,440 INFO L78 Accepts]: Start accepts. Automaton has 14749 states and 21963 transitions. Word has length 389 [2021-11-17 03:33:09,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:33:09,441 INFO L470 AbstractCegarLoop]: Abstraction has 14749 states and 21963 transitions. [2021-11-17 03:33:09,441 INFO L471 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) [2021-11-17 03:33:09,441 INFO L276 IsEmpty]: Start isEmpty. Operand 14749 states and 21963 transitions. [2021-11-17 03:33:09,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-11-17 03:33:09,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:33:09,457 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:33:09,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 03:33:09,457 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:33:09,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:33:09,458 INFO L85 PathProgramCache]: Analyzing trace with hash 2092010551, now seen corresponding path program 1 times [2021-11-17 03:33:09,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:33:09,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404316887] [2021-11-17 03:33:09,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:33:09,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:33:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:33:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:33:09,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:33:09,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:33:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:09,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:33:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:33:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:33:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:33:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:33:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:33:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:33:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:33:09,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:33:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:33:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:33:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:33:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:09,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 03:33:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 03:33:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 03:33:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:33:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 03:33:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 03:33:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 03:33:10,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 03:33:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 03:33:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 03:33:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2021-11-17 03:33:10,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:33:10,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404316887] [2021-11-17 03:33:10,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404316887] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:33:10,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:33:10,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-17 03:33:10,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809006930] [2021-11-17 03:33:10,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:33:10,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-17 03:33:10,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:33:10,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-17 03:33:10,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=415, Unknown=0, NotChecked=0, Total=462 [2021-11-17 03:33:10,271 INFO L87 Difference]: Start difference. First operand 14749 states and 21963 transitions. Second operand has 22 states, 22 states have (on average 8.090909090909092) internal successors, (178), 14 states have internal predecessors, (178), 6 states have call successors, (33), 8 states have call predecessors, (33), 3 states have return successors, (32), 8 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-17 03:33:17,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:33:29,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:33:29,151 INFO L93 Difference]: Finished difference Result 34663 states and 53367 transitions. [2021-11-17 03:33:29,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-17 03:33:29,152 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.090909090909092) internal successors, (178), 14 states have internal predecessors, (178), 6 states have call successors, (33), 8 states have call predecessors, (33), 3 states have return successors, (32), 8 states have call predecessors, (32), 6 states have call successors, (32) Word has length 393 [2021-11-17 03:33:29,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:33:29,233 INFO L225 Difference]: With dead ends: 34663 [2021-11-17 03:33:29,233 INFO L226 Difference]: Without dead ends: 27256 [2021-11-17 03:33:29,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 419 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=302, Invalid=2148, Unknown=0, NotChecked=0, Total=2450 [2021-11-17 03:33:29,262 INFO L933 BasicCegarLoop]: 2019 mSDtfsCounter, 6057 mSDsluCounter, 23034 mSDsCounter, 0 mSdLazyCounter, 15202 mSolverCounterSat, 2378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6115 SdHoareTripleChecker+Valid, 25053 SdHoareTripleChecker+Invalid, 17580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2378 IncrementalHoareTripleChecker+Valid, 15202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2021-11-17 03:33:29,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6115 Valid, 25053 Invalid, 17580 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2378 Valid, 15202 Invalid, 0 Unknown, 0 Unchecked, 16.9s Time] [2021-11-17 03:33:29,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27256 states. [2021-11-17 03:33:30,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27256 to 19849. [2021-11-17 03:33:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19849 states, 15852 states have (on average 1.449596265455463) internal successors, (22979), 15998 states have internal predecessors, (22979), 3495 states have call successors, (3495), 496 states have call predecessors, (3495), 501 states have return successors, (3601), 3432 states have call predecessors, (3601), 3493 states have call successors, (3601) [2021-11-17 03:33:30,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19849 states to 19849 states and 30075 transitions. [2021-11-17 03:33:30,435 INFO L78 Accepts]: Start accepts. Automaton has 19849 states and 30075 transitions. Word has length 393 [2021-11-17 03:33:30,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:33:30,435 INFO L470 AbstractCegarLoop]: Abstraction has 19849 states and 30075 transitions. [2021-11-17 03:33:30,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.090909090909092) internal successors, (178), 14 states have internal predecessors, (178), 6 states have call successors, (33), 8 states have call predecessors, (33), 3 states have return successors, (32), 8 states have call predecessors, (32), 6 states have call successors, (32) [2021-11-17 03:33:30,436 INFO L276 IsEmpty]: Start isEmpty. Operand 19849 states and 30075 transitions. [2021-11-17 03:33:30,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-11-17 03:33:30,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:33:30,455 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:33:30,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 03:33:30,456 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:33:30,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:33:30,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1194617273, now seen corresponding path program 1 times [2021-11-17 03:33:30,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:33:30,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419881173] [2021-11-17 03:33:30,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:33:30,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:33:30,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:33:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:33:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:33:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:33:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:33:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:30,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:33:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:33:30,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:33:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:33:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:33:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:33:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:33:30,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:33:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:33:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:33:30,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:33:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 03:33:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 03:33:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 03:33:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-11-17 03:33:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:31,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-11-17 03:33:31,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:31,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:31,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:31,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 03:33:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:31,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-11-17 03:33:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:31,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2021-11-17 03:33:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:31,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2021-11-17 03:33:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:31,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-11-17 03:33:31,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:31,217 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2021-11-17 03:33:31,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:33:31,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419881173] [2021-11-17 03:33:31,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419881173] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:33:31,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:33:31,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-17 03:33:31,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074918774] [2021-11-17 03:33:31,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:33:31,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-17 03:33:31,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:33:31,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-17 03:33:31,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2021-11-17 03:33:31,220 INFO L87 Difference]: Start difference. First operand 19849 states and 30075 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) [2021-11-17 03:33:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:33:43,753 INFO L93 Difference]: Finished difference Result 40750 states and 62331 transitions. [2021-11-17 03:33:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-17 03:33:43,755 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 [2021-11-17 03:33:43,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:33:43,814 INFO L225 Difference]: With dead ends: 40750 [2021-11-17 03:33:43,814 INFO L226 Difference]: Without dead ends: 21015 [2021-11-17 03:33:43,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2021-11-17 03:33:43,854 INFO L933 BasicCegarLoop]: 1955 mSDtfsCounter, 3309 mSDsluCounter, 20006 mSDsCounter, 0 mSdLazyCounter, 8381 mSolverCounterSat, 1594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3372 SdHoareTripleChecker+Valid, 21961 SdHoareTripleChecker+Invalid, 9975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1594 IncrementalHoareTripleChecker+Valid, 8381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-11-17 03:33:43,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3372 Valid, 21961 Invalid, 9975 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1594 Valid, 8381 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2021-11-17 03:33:43,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21015 states. [2021-11-17 03:33:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21015 to 14749. [2021-11-17 03:33:44,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14749 states, 11652 states have (on average 1.4345176793683487) internal successors, (16715), 11798 states have internal predecessors, (16715), 2595 states have call successors, (2595), 496 states have call predecessors, (2595), 501 states have return successors, (2653), 2532 states have call predecessors, (2653), 2593 states have call successors, (2653) [2021-11-17 03:33:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14749 states to 14749 states and 21963 transitions. [2021-11-17 03:33:44,764 INFO L78 Accepts]: Start accepts. Automaton has 14749 states and 21963 transitions. Word has length 393 [2021-11-17 03:33:44,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:33:44,764 INFO L470 AbstractCegarLoop]: Abstraction has 14749 states and 21963 transitions. [2021-11-17 03:33:44,764 INFO L471 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) [2021-11-17 03:33:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 14749 states and 21963 transitions. [2021-11-17 03:33:44,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-17 03:33:44,780 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:33:44,781 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:33:44,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 03:33:44,781 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:33:44,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:33:44,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1534481643, now seen corresponding path program 1 times [2021-11-17 03:33:44,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:33:44,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100821376] [2021-11-17 03:33:44,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:33:44,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:33:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:33:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:33:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:33:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:45,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:33:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:33:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:33:45,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:33:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:33:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:33:45,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:33:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:33:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:33:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:33:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:33:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:33:45,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:33:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 03:33:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 03:33:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 03:33:45,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:33:45,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:33:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 03:33:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 03:33:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 03:33:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-11-17 03:33:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 03:33:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-11-17 03:33:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 03:33:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2021-11-17 03:33:45,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:33:45,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100821376] [2021-11-17 03:33:45,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100821376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:33:45,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:33:45,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 03:33:45,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650688296] [2021-11-17 03:33:45,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:33:45,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 03:33:45,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:33:45,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 03:33:45,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-17 03:33:45,262 INFO L87 Difference]: Start difference. First operand 14749 states and 21963 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 03:33:50,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:33:50,896 INFO L93 Difference]: Finished difference Result 22702 states and 33868 transitions. [2021-11-17 03:33:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 03:33:50,897 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 409 [2021-11-17 03:33:50,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:33:50,928 INFO L225 Difference]: With dead ends: 22702 [2021-11-17 03:33:50,929 INFO L226 Difference]: Without dead ends: 15295 [2021-11-17 03:33:50,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-11-17 03:33:50,944 INFO L933 BasicCegarLoop]: 1490 mSDtfsCounter, 2480 mSDsluCounter, 3729 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 1451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 5219 SdHoareTripleChecker+Invalid, 4006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1451 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-17 03:33:50,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2485 Valid, 5219 Invalid, 4006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1451 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-11-17 03:33:50,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15295 states. [2021-11-17 03:33:51,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15295 to 14965. [2021-11-17 03:33:51,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14965 states, 11844 states have (on average 1.4355791962174942) internal successors, (17003), 11990 states have internal predecessors, (17003), 2619 states have call successors, (2619), 496 states have call predecessors, (2619), 501 states have return successors, (2677), 2556 states have call predecessors, (2677), 2617 states have call successors, (2677) [2021-11-17 03:33:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14965 states to 14965 states and 22299 transitions. [2021-11-17 03:33:51,559 INFO L78 Accepts]: Start accepts. Automaton has 14965 states and 22299 transitions. Word has length 409 [2021-11-17 03:33:51,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:33:51,559 INFO L470 AbstractCegarLoop]: Abstraction has 14965 states and 22299 transitions. [2021-11-17 03:33:51,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (33), 8 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-17 03:33:51,559 INFO L276 IsEmpty]: Start isEmpty. Operand 14965 states and 22299 transitions. [2021-11-17 03:33:51,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-17 03:33:51,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:33:51,576 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:33:51,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-17 03:33:51,576 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:33:51,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:33:51,577 INFO L85 PathProgramCache]: Analyzing trace with hash 637088365, now seen corresponding path program 1 times [2021-11-17 03:33:51,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:33:51,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574368150] [2021-11-17 03:33:51,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:33:51,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:33:52,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:33:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:52,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:33:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:33:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:33:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:33:52,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:33:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:33:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:33:52,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:33:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:33:52,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:33:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:33:52,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:33:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:33:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:33:52,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:33:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:33:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 03:33:52,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 03:33:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 03:33:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:33:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:33:52,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 03:33:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 03:33:52,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:33:52,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-11-17 03:33:52,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2021-11-17 03:33:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 03:33:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-11-17 03:33:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2021-11-17 03:33:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:33:52,539 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 792 trivial. 0 not checked. [2021-11-17 03:33:52,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:33:52,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574368150] [2021-11-17 03:33:52,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574368150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 03:33:52,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 03:33:52,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 03:33:52,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609443953] [2021-11-17 03:33:52,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 03:33:52,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 03:33:52,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 03:33:52,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 03:33:52,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-17 03:33:52,542 INFO L87 Difference]: Start difference. First operand 14965 states and 22299 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) [2021-11-17 03:33:56,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:34:02,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 03:34:03,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 03:34:03,099 INFO L93 Difference]: Finished difference Result 33246 states and 50140 transitions. [2021-11-17 03:34:03,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 03:34:03,100 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 [2021-11-17 03:34:03,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 03:34:03,145 INFO L225 Difference]: With dead ends: 33246 [2021-11-17 03:34:03,145 INFO L226 Difference]: Without dead ends: 18395 [2021-11-17 03:34:03,172 INFO L932 BasicCegarLoop]: 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 [2021-11-17 03:34:03,172 INFO L933 BasicCegarLoop]: 1854 mSDtfsCounter, 2280 mSDsluCounter, 5435 mSDsCounter, 0 mSdLazyCounter, 2991 mSolverCounterSat, 931 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 7289 SdHoareTripleChecker+Invalid, 3923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 931 IncrementalHoareTripleChecker+Valid, 2991 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-17 03:34:03,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2404 Valid, 7289 Invalid, 3923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [931 Valid, 2991 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2021-11-17 03:34:03,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18395 states. [2021-11-17 03:34:03,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18395 to 14977. [2021-11-17 03:34:03,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14977 states, 11856 states have (on average 1.435138326585695) internal successors, (17015), 12002 states have internal predecessors, (17015), 2619 states have call successors, (2619), 496 states have call predecessors, (2619), 501 states have return successors, (2677), 2556 states have call predecessors, (2677), 2617 states have call successors, (2677) [2021-11-17 03:34:04,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14977 states to 14977 states and 22311 transitions. [2021-11-17 03:34:04,009 INFO L78 Accepts]: Start accepts. Automaton has 14977 states and 22311 transitions. Word has length 409 [2021-11-17 03:34:04,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 03:34:04,010 INFO L470 AbstractCegarLoop]: Abstraction has 14977 states and 22311 transitions. [2021-11-17 03:34:04,010 INFO L471 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) [2021-11-17 03:34:04,010 INFO L276 IsEmpty]: Start isEmpty. Operand 14977 states and 22311 transitions. [2021-11-17 03:34:04,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-17 03:34:04,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 03:34:04,028 INFO L514 BasicCegarLoop]: 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] [2021-11-17 03:34:04,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 03:34:04,029 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 03:34:04,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 03:34:04,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1865942319, now seen corresponding path program 1 times [2021-11-17 03:34:04,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 03:34:04,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729705703] [2021-11-17 03:34:04,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:34:04,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 03:34:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:34:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:34:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 03:34:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:34:04,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 03:34:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:34:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 03:34:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:34:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 03:34:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:34:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 03:34:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:34:04,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 03:34:04,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:34:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-11-17 03:34:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:34:04,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 03:34:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 03:34:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 03:34:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 03:34:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 03:34:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 03:34:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 03:34:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-11-17 03:34:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 03:34:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 03:34:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 03:34:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 03:34:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 03:34:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 03:34:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-17 03:34:04,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2021-11-17 03:34:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 03:34:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-11-17 03:34:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-11-17 03:34:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2021-11-17 03:34:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2021-11-17 03:34:04,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 387 [2021-11-17 03:34:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:04,786 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2021-11-17 03:34:04,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 03:34:04,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729705703] [2021-11-17 03:34:04,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729705703] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 03:34:04,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [385697829] [2021-11-17 03:34:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 03:34:04,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 03:34:04,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 03:34:04,791 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) [2021-11-17 03:34:04,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 03:34:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 03:34:05,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 3722 conjuncts, 140 conjunts are in the unsatisfiable core [2021-11-17 03:34:05,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 03:34:06,535 INFO L388 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 [2021-11-17 03:34:07,174 INFO L354 Elim1Store]: treesize reduction 164, result has 11.4 percent of original size [2021-11-17 03:34:07,174 INFO L388 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 4 case distinctions, treesize of input 30 treesize of output 38 [2021-11-17 03:34:07,886 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-17 03:34:07,886 INFO L388 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 10 [2021-11-17 03:34:07,937 INFO L388 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 9 treesize of output 7 [2021-11-17 03:34:07,957 INFO L388 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 9 treesize of output 7 [2021-11-17 03:34:07,979 INFO L388 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 9 treesize of output 7 [2021-11-17 03:34:08,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-17 03:34:08,069 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-17 03:34:08,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 14 [2021-11-17 03:35:46,370 WARN L227 SmtUtils]: Spent 1.62m on a formula simplification. DAG size of input: 70 DAG size of output: 23 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-17 03:35:46,371 INFO L354 Elim1Store]: treesize reduction 312, result has 10.1 percent of original size [2021-11-17 03:35:46,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 19233 treesize of output 19230 [2021-11-17 03:36:59,475 WARN L227 SmtUtils]: Spent 1.22m on a formula simplification. DAG size of input: 70 DAG size of output: 23 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-17 03:36:59,475 INFO L354 Elim1Store]: treesize reduction 188, result has 15.7 percent of original size [2021-11-17 03:36:59,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 19230 treesize of output 19223 [2021-11-17 03:37:44,366 WARN L227 SmtUtils]: Spent 44.71s on a formula simplification. DAG size of input: 30 DAG size of output: 13 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-17 03:37:44,366 INFO L354 Elim1Store]: treesize reduction 82, result has 17.2 percent of original size [2021-11-17 03:37:44,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 19167 treesize of output 19156 [2021-11-17 03:40:27,561 WARN L227 SmtUtils]: Spent 2.72m on a formula simplification. DAG size of input: 126 DAG size of output: 33 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-17 03:40:27,562 INFO L354 Elim1Store]: treesize reduction 712, result has 6.9 percent of original size [2021-11-17 03:40:27,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 19156 treesize of output 19159 [2021-11-17 03:42:13,983 WARN L227 SmtUtils]: Spent 1.77m on a formula simplification. DAG size of input: 126 DAG size of output: 33 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-17 03:42:13,983 INFO L354 Elim1Store]: treesize reduction 356, result has 13.0 percent of original size [2021-11-17 03:42:13,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 19159 treesize of output 19158 [2021-11-17 03:43:27,677 WARN L227 SmtUtils]: Spent 1.23m on a formula simplification. DAG size of input: 70 DAG size of output: 23 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-17 03:43:27,678 INFO L354 Elim1Store]: treesize reduction 188, result has 15.7 percent of original size [2021-11-17 03:43:27,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 19158 treesize of output 19151 Killed by 15