./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--usb--class--cdc-wdm.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--usb--class--cdc-wdm.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 4de76b02991c4f8780142b48e1370b1ba073d7148b74e77b2c83d6f21359d59e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 04:36:55,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 04:36:55,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 04:36:55,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 04:36:55,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 04:36:55,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 04:36:55,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 04:36:55,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 04:36:55,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 04:36:55,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 04:36:55,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 04:36:55,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 04:36:55,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 04:36:55,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 04:36:55,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 04:36:55,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 04:36:55,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 04:36:55,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 04:36:55,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 04:36:55,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 04:36:55,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 04:36:55,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 04:36:55,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 04:36:55,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 04:36:55,208 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 04:36:55,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 04:36:55,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 04:36:55,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 04:36:55,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 04:36:55,214 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 04:36:55,214 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 04:36:55,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 04:36:55,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 04:36:55,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 04:36:55,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 04:36:55,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 04:36:55,218 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 04:36:55,218 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 04:36:55,218 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 04:36:55,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 04:36:55,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 04:36:55,220 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 04:36:55,245 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 04:36:55,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 04:36:55,246 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 04:36:55,246 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 04:36:55,247 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 04:36:55,247 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 04:36:55,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 04:36:55,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 04:36:55,248 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 04:36:55,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 04:36:55,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 04:36:55,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 04:36:55,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 04:36:55,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 04:36:55,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 04:36:55,249 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 04:36:55,249 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 04:36:55,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 04:36:55,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 04:36:55,250 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 04:36:55,250 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 04:36:55,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:36:55,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 04:36:55,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 04:36:55,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 04:36:55,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 04:36:55,251 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 04:36:55,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 04:36:55,252 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 04:36:55,252 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 04:36:55,252 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 04:36:55,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de76b02991c4f8780142b48e1370b1ba073d7148b74e77b2c83d6f21359d59e [2021-11-17 04:36:55,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 04:36:55,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 04:36:55,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 04:36:55,458 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 04:36:55,458 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 04:36:55,459 INFO L432 ainManager$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--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2021-11-17 04:36:55,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e05dc5edd/0ebee177465842df997cc7ff669ec1c0/FLAG102968e1f [2021-11-17 04:36:56,047 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 04:36:56,048 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--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2021-11-17 04:36:56,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e05dc5edd/0ebee177465842df997cc7ff669ec1c0/FLAG102968e1f [2021-11-17 04:36:56,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e05dc5edd/0ebee177465842df997cc7ff669ec1c0 [2021-11-17 04:36:56,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 04:36:56,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 04:36:56,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 04:36:56,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 04:36:56,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 04:36:56,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:36:56" (1/1) ... [2021-11-17 04:36:56,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd08bc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:56, skipping insertion in model container [2021-11-17 04:36:56,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 04:36:56" (1/1) ... [2021-11-17 04:36:56,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 04:36:56,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 04:36:57,228 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--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2021-11-17 04:36:57,316 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:36:57,345 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 04:36:57,521 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--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2021-11-17 04:36:57,536 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 04:36:57,607 INFO L208 MainTranslator]: Completed translation [2021-11-17 04:36:57,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57 WrapperNode [2021-11-17 04:36:57,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 04:36:57,610 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 04:36:57,610 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 04:36:57,610 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 04:36:57,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,765 INFO L137 Inliner]: procedures = 282, calls = 1375, calls flagged for inlining = 101, calls inlined = 84, statements flattened = 2559 [2021-11-17 04:36:57,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 04:36:57,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 04:36:57,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 04:36:57,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 04:36:57,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,893 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 04:36:57,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 04:36:57,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 04:36:57,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 04:36:57,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (1/1) ... [2021-11-17 04:36:57,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 04:36:57,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:36:57,958 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 04:36:57,963 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 04:36:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-17 04:36:58,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-17 04:36:58,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-11-17 04:36:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-11-17 04:36:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 04:36:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 04:36:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 04:36:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 04:36:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wdm_mutex [2021-11-17 04:36:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wdm_mutex [2021-11-17 04:36:58,002 INFO L130 BoogieDeclarations]: Found specification of procedure recover_from_urb_loss [2021-11-17 04:36:58,002 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_from_urb_loss [2021-11-17 04:36:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2021-11-17 04:36:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2021-11-17 04:36:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 04:36:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 04:36:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-17 04:36:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-17 04:36:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-17 04:36:58,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-17 04:36:58,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-11-17 04:36:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-11-17 04:36:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_create [2021-11-17 04:36:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_create [2021-11-17 04:36:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 04:36:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 04:36:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 04:36:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 04:36:58,004 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_poll [2021-11-17 04:36:58,004 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_poll [2021-11-17 04:36:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 04:36:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 04:36:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 04:36:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 04:36:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-17 04:36:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-17 04:36:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 04:36:58,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 04:36:58,005 INFO L130 BoogieDeclarations]: Found specification of procedure clear_wdm_read_flag [2021-11-17 04:36:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_wdm_read_flag [2021-11-17 04:36:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_39 [2021-11-17 04:36:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_39 [2021-11-17 04:36:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_write [2021-11-17 04:36:58,006 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_write [2021-11-17 04:36:58,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 04:36:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-17 04:36:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-17 04:36:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_ioctl [2021-11-17 04:36:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_ioctl [2021-11-17 04:36:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_disconnect [2021-11-17 04:36:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_disconnect [2021-11-17 04:36:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 04:36:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_rlock_of_wdm_device [2021-11-17 04:36:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_rlock_of_wdm_device [2021-11-17 04:36:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 04:36:58,008 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 04:36:58,008 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2021-11-17 04:36:58,009 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2021-11-17 04:36:58,009 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_rxwork [2021-11-17 04:36:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_rxwork [2021-11-17 04:36:58,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 04:36:58,010 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-11-17 04:36:58,010 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-11-17 04:36:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 04:36:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-17 04:36:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-17 04:36:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-17 04:36:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-17 04:36:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-17 04:36:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-17 04:36:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-17 04:36:58,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-17 04:36:58,044 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-11-17 04:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 04:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-17 04:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wdm_mutex [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wdm_mutex [2021-11-17 04:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wlock_of_wdm_device [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wlock_of_wdm_device [2021-11-17 04:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 04:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-17 04:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-17 04:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_flush [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_flush [2021-11-17 04:36:58,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wlock_of_wdm_device [2021-11-17 04:36:58,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wlock_of_wdm_device [2021-11-17 04:36:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-17 04:36:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-17 04:36:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 04:36:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-17 04:36:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-17 04:36:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 04:36:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 04:36:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 04:36:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 04:36:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 04:36:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 04:36:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 04:36:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure kill_urbs [2021-11-17 04:36:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_urbs [2021-11-17 04:36:58,046 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-17 04:36:58,046 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 04:36:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-17 04:36:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-17 04:36:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 04:36:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 04:36:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_resume [2021-11-17 04:36:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_resume [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 04:36:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 04:36:58,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 04:36:58,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 04:36:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-17 04:36:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-17 04:36:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-17 04:36:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-17 04:36:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_rlock_of_wdm_device [2021-11-17 04:36:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_rlock_of_wdm_device [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-17 04:36:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device [2021-11-17 04:36:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 04:36:58,048 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 04:36:58,048 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 04:36:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 04:36:58,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 04:36:58,049 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-17 04:36:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-17 04:36:58,049 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-17 04:36:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-17 04:36:58,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 04:36:58,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 04:36:58,480 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 04:36:58,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 04:36:58,744 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 04:37:01,123 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 04:37:01,133 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 04:37:01,133 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 04:37:01,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:37:01 BoogieIcfgContainer [2021-11-17 04:37:01,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 04:37:01,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 04:37:01,137 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 04:37:01,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 04:37:01,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 04:36:56" (1/3) ... [2021-11-17 04:37:01,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797a47f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:37:01, skipping insertion in model container [2021-11-17 04:37:01,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 04:36:57" (2/3) ... [2021-11-17 04:37:01,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797a47f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 04:37:01, skipping insertion in model container [2021-11-17 04:37:01,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 04:37:01" (3/3) ... [2021-11-17 04:37:01,141 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2021-11-17 04:37:01,145 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 04:37:01,145 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 04:37:01,178 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 04:37:01,182 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 04:37:01,183 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 04:37:01,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 1061 states, 688 states have (on average 1.305232558139535) internal successors, (898), 721 states have internal predecessors, (898), 301 states have call successors, (301), 71 states have call predecessors, (301), 70 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2021-11-17 04:37:01,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-17 04:37:01,219 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:01,220 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 7, 7, 7, 7, 7, 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 04:37:01,221 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:01,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:01,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1163720411, now seen corresponding path program 1 times [2021-11-17 04:37:01,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:01,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704601167] [2021-11-17 04:37:01,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:01,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:01,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:01,858 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 04:37:01,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:01,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704601167] [2021-11-17 04:37:01,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704601167] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:01,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:01,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 04:37:01,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443633459] [2021-11-17 04:37:01,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:01,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 04:37:01,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:01,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 04:37:01,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 04:37:01,897 INFO L87 Difference]: Start difference. First operand has 1061 states, 688 states have (on average 1.305232558139535) internal successors, (898), 721 states have internal predecessors, (898), 301 states have call successors, (301), 71 states have call predecessors, (301), 70 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) 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 04:37:03,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:04,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:07,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:07,180 INFO L93 Difference]: Finished difference Result 2152 states and 3098 transitions. [2021-11-17 04:37:07,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 04:37:07,182 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 192 [2021-11-17 04:37:07,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:07,198 INFO L225 Difference]: With dead ends: 2152 [2021-11-17 04:37:07,199 INFO L226 Difference]: Without dead ends: 1084 [2021-11-17 04:37:07,208 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 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 04:37:07,211 INFO L933 BasicCegarLoop]: 1368 mSDtfsCounter, 573 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 690 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 1477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:07,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [617 Valid, 2439 Invalid, 1477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 786 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2021-11-17 04:37:07,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2021-11-17 04:37:07,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1049. [2021-11-17 04:37:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 683 states have (on average 1.2957540263543192) internal successors, (885), 709 states have internal predecessors, (885), 296 states have call successors, (296), 70 states have call predecessors, (296), 69 states have return successors, (282), 281 states have call predecessors, (282), 282 states have call successors, (282) [2021-11-17 04:37:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1463 transitions. [2021-11-17 04:37:07,304 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1463 transitions. Word has length 192 [2021-11-17 04:37:07,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:07,305 INFO L470 AbstractCegarLoop]: Abstraction has 1049 states and 1463 transitions. [2021-11-17 04:37:07,305 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 04:37:07,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1463 transitions. [2021-11-17 04:37:07,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-17 04:37:07,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:07,310 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 7, 7, 7, 7, 7, 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 04:37:07,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 04:37:07,311 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:07,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:07,311 INFO L85 PathProgramCache]: Analyzing trace with hash 594763753, now seen corresponding path program 1 times [2021-11-17 04:37:07,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:07,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679582818] [2021-11-17 04:37:07,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:07,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:07,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:07,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:07,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:07,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:07,710 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 04:37:07,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:07,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679582818] [2021-11-17 04:37:07,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679582818] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:07,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:07,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:37:07,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417038435] [2021-11-17 04:37:07,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:07,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:37:07,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:07,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:37:07,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:37:07,714 INFO L87 Difference]: Start difference. First operand 1049 states and 1463 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 04:37:08,775 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:10,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:13,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:13,611 INFO L93 Difference]: Finished difference Result 3103 states and 4349 transitions. [2021-11-17 04:37:13,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:37:13,612 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 192 [2021-11-17 04:37:13,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:13,629 INFO L225 Difference]: With dead ends: 3103 [2021-11-17 04:37:13,630 INFO L226 Difference]: Without dead ends: 2095 [2021-11-17 04:37:13,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 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 04:37:13,634 INFO L933 BasicCegarLoop]: 1548 mSDtfsCounter, 2792 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 2277 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3009 SdHoareTripleChecker+Valid, 3205 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2277 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:13,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3009 Valid, 3205 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2277 Valid, 1182 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2021-11-17 04:37:13,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2095 states. [2021-11-17 04:37:13,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2095 to 2019. [2021-11-17 04:37:13,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2019 states, 1322 states have (on average 1.29803328290469) internal successors, (1716), 1361 states have internal predecessors, (1716), 559 states have call successors, (559), 138 states have call predecessors, (559), 137 states have return successors, (545), 543 states have call predecessors, (545), 545 states have call successors, (545) [2021-11-17 04:37:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2019 states to 2019 states and 2820 transitions. [2021-11-17 04:37:13,730 INFO L78 Accepts]: Start accepts. Automaton has 2019 states and 2820 transitions. Word has length 192 [2021-11-17 04:37:13,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:13,731 INFO L470 AbstractCegarLoop]: Abstraction has 2019 states and 2820 transitions. [2021-11-17 04:37:13,731 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 04:37:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2019 states and 2820 transitions. [2021-11-17 04:37:13,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-17 04:37:13,739 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:13,739 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 7, 7, 7, 7, 7, 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, 1] [2021-11-17 04:37:13,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 04:37:13,740 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:13,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:13,740 INFO L85 PathProgramCache]: Analyzing trace with hash -550685128, now seen corresponding path program 1 times [2021-11-17 04:37:13,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:13,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060438807] [2021-11-17 04:37:13,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:13,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:13,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:13,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:13,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:13,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:13,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:13,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:13,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:14,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:14,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:14,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:37:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:14,034 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 04:37:14,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:14,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060438807] [2021-11-17 04:37:14,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060438807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:14,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:14,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:37:14,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190513200] [2021-11-17 04:37:14,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:14,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:37:14,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:14,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:37:14,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:37:14,040 INFO L87 Difference]: Start difference. First operand 2019 states and 2820 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:16,054 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 04:37:18,103 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 04:37:21,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:21,934 INFO L93 Difference]: Finished difference Result 5187 states and 7184 transitions. [2021-11-17 04:37:21,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:37:21,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 195 [2021-11-17 04:37:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:21,949 INFO L225 Difference]: With dead ends: 5187 [2021-11-17 04:37:21,950 INFO L226 Difference]: Without dead ends: 3209 [2021-11-17 04:37:21,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 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 04:37:21,961 INFO L933 BasicCegarLoop]: 1446 mSDtfsCounter, 1520 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 1194 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1635 SdHoareTripleChecker+Valid, 4036 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1194 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:21,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1635 Valid, 4036 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1194 Valid, 1814 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2021-11-17 04:37:21,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3209 states. [2021-11-17 04:37:22,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3209 to 3083. [2021-11-17 04:37:22,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3083 states, 2025 states have (on average 1.2839506172839505) internal successors, (2600), 2070 states have internal predecessors, (2600), 818 states have call successors, (818), 240 states have call predecessors, (818), 239 states have return successors, (804), 800 states have call predecessors, (804), 804 states have call successors, (804) [2021-11-17 04:37:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3083 states to 3083 states and 4222 transitions. [2021-11-17 04:37:22,120 INFO L78 Accepts]: Start accepts. Automaton has 3083 states and 4222 transitions. Word has length 195 [2021-11-17 04:37:22,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:22,121 INFO L470 AbstractCegarLoop]: Abstraction has 3083 states and 4222 transitions. [2021-11-17 04:37:22,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:22,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3083 states and 4222 transitions. [2021-11-17 04:37:22,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-17 04:37:22,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:22,125 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 7, 7, 7, 7, 7, 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, 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 04:37:22,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 04:37:22,125 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:22,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:22,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1513461858, now seen corresponding path program 1 times [2021-11-17 04:37:22,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:22,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408670928] [2021-11-17 04:37:22,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:22,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-17 04:37:22,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:37:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:22,428 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-11-17 04:37:22,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:22,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408670928] [2021-11-17 04:37:22,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408670928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:22,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:22,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:37:22,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56626014] [2021-11-17 04:37:22,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:22,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:37:22,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:22,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:37:22,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:37:22,432 INFO L87 Difference]: Start difference. First operand 3083 states and 4222 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 04:37:25,267 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:29,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:29,014 INFO L93 Difference]: Finished difference Result 7830 states and 10738 transitions. [2021-11-17 04:37:29,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:37:29,014 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 217 [2021-11-17 04:37:29,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:29,034 INFO L225 Difference]: With dead ends: 7830 [2021-11-17 04:37:29,035 INFO L226 Difference]: Without dead ends: 4798 [2021-11-17 04:37:29,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 68 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 04:37:29,044 INFO L933 BasicCegarLoop]: 1940 mSDtfsCounter, 1482 mSDsluCounter, 3090 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 986 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 5030 SdHoareTripleChecker+Invalid, 3045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 986 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:29,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1652 Valid, 5030 Invalid, 3045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [986 Valid, 2058 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-17 04:37:29,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4798 states. [2021-11-17 04:37:29,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4798 to 4631. [2021-11-17 04:37:29,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4631 states, 3072 states have (on average 1.2900390625) internal successors, (3963), 3145 states have internal predecessors, (3963), 1190 states have call successors, (1190), 369 states have call predecessors, (1190), 368 states have return successors, (1176), 1168 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-17 04:37:29,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4631 states to 4631 states and 6329 transitions. [2021-11-17 04:37:29,184 INFO L78 Accepts]: Start accepts. Automaton has 4631 states and 6329 transitions. Word has length 217 [2021-11-17 04:37:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:29,185 INFO L470 AbstractCegarLoop]: Abstraction has 4631 states and 6329 transitions. [2021-11-17 04:37:29,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 04:37:29,185 INFO L276 IsEmpty]: Start isEmpty. Operand 4631 states and 6329 transitions. [2021-11-17 04:37:29,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-11-17 04:37:29,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:29,188 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:29,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 04:37:29,188 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:29,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:29,189 INFO L85 PathProgramCache]: Analyzing trace with hash -373598798, now seen corresponding path program 1 times [2021-11-17 04:37:29,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:29,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107735742] [2021-11-17 04:37:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:29,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:29,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:29,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:29,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:29,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:29,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:37:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2021-11-17 04:37:29,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:29,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107735742] [2021-11-17 04:37:29,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107735742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:29,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:29,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:37:29,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149319778] [2021-11-17 04:37:29,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:29,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:37:29,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:29,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:37:29,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:37:29,531 INFO L87 Difference]: Start difference. First operand 4631 states and 6329 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, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:31,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:32,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:34,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:34,587 INFO L93 Difference]: Finished difference Result 4773 states and 6549 transitions. [2021-11-17 04:37:34,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:37:34,587 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, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 212 [2021-11-17 04:37:34,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:34,607 INFO L225 Difference]: With dead ends: 4773 [2021-11-17 04:37:34,607 INFO L226 Difference]: Without dead ends: 4770 [2021-11-17 04:37:34,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 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 04:37:34,612 INFO L933 BasicCegarLoop]: 1345 mSDtfsCounter, 1658 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 904 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 1693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:34,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1833 Valid, 2394 Invalid, 1693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 788 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2021-11-17 04:37:34,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4770 states. [2021-11-17 04:37:34,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4770 to 4630. [2021-11-17 04:37:34,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4630 states, 3072 states have (on average 1.2897135416666667) internal successors, (3962), 3144 states have internal predecessors, (3962), 1189 states have call successors, (1189), 369 states have call predecessors, (1189), 368 states have return successors, (1176), 1168 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-17 04:37:34,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4630 states to 4630 states and 6327 transitions. [2021-11-17 04:37:34,756 INFO L78 Accepts]: Start accepts. Automaton has 4630 states and 6327 transitions. Word has length 212 [2021-11-17 04:37:34,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:34,756 INFO L470 AbstractCegarLoop]: Abstraction has 4630 states and 6327 transitions. [2021-11-17 04:37:34,757 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, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:34,757 INFO L276 IsEmpty]: Start isEmpty. Operand 4630 states and 6327 transitions. [2021-11-17 04:37:34,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-17 04:37:34,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:34,759 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:34,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 04:37:34,759 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:34,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:34,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1302845545, now seen corresponding path program 1 times [2021-11-17 04:37:34,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:34,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644936353] [2021-11-17 04:37:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:34,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:34,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:34,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:34,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:34,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:34,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:34,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:34,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:34,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:35,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:35,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:35,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:35,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:35,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:35,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:37:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:35,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:35,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2021-11-17 04:37:35,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:35,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644936353] [2021-11-17 04:37:35,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644936353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:35,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:35,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:37:35,063 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61593176] [2021-11-17 04:37:35,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:35,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:37:35,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:35,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:37:35,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:37:35,065 INFO L87 Difference]: Start difference. First operand 4630 states and 6327 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, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:37,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:38,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:38,656 INFO L93 Difference]: Finished difference Result 4772 states and 6547 transitions. [2021-11-17 04:37:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:37:38,656 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, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 213 [2021-11-17 04:37:38,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:38,675 INFO L225 Difference]: With dead ends: 4772 [2021-11-17 04:37:38,676 INFO L226 Difference]: Without dead ends: 4769 [2021-11-17 04:37:38,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 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 04:37:38,680 INFO L933 BasicCegarLoop]: 1341 mSDtfsCounter, 1969 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 1280 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2146 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1280 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:38,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2146 Valid, 1893 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1280 Valid, 484 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-17 04:37:38,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4769 states. [2021-11-17 04:37:38,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4769 to 4629. [2021-11-17 04:37:38,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4629 states, 3072 states have (on average 1.2893880208333333) internal successors, (3961), 3143 states have internal predecessors, (3961), 1188 states have call successors, (1188), 369 states have call predecessors, (1188), 368 states have return successors, (1176), 1168 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-17 04:37:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 6325 transitions. [2021-11-17 04:37:38,823 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 6325 transitions. Word has length 213 [2021-11-17 04:37:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:38,826 INFO L470 AbstractCegarLoop]: Abstraction has 4629 states and 6325 transitions. [2021-11-17 04:37:38,826 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, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:38,826 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 6325 transitions. [2021-11-17 04:37:38,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-17 04:37:38,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:38,828 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:38,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 04:37:38,828 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:38,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:38,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1733017493, now seen corresponding path program 1 times [2021-11-17 04:37:38,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:38,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180083572] [2021-11-17 04:37:38,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:38,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:38,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:38,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:39,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:39,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:39,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:39,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:37:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2021-11-17 04:37:39,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:39,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180083572] [2021-11-17 04:37:39,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180083572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:39,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:39,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:37:39,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949272264] [2021-11-17 04:37:39,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:39,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:37:39,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:39,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:37:39,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:37:39,124 INFO L87 Difference]: Start difference. First operand 4629 states and 6325 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:41,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:43,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:37:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:46,453 INFO L93 Difference]: Finished difference Result 4771 states and 6545 transitions. [2021-11-17 04:37:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 04:37:46,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 214 [2021-11-17 04:37:46,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:46,479 INFO L225 Difference]: With dead ends: 4771 [2021-11-17 04:37:46,479 INFO L226 Difference]: Without dead ends: 4768 [2021-11-17 04:37:46,483 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 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 04:37:46,484 INFO L933 BasicCegarLoop]: 1341 mSDtfsCounter, 1652 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 891 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1827 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 1987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:46,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1827 Valid, 2864 Invalid, 1987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 1095 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2021-11-17 04:37:46,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4768 states. [2021-11-17 04:37:46,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4768 to 4628. [2021-11-17 04:37:46,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4628 states, 3072 states have (on average 1.2890625) internal successors, (3960), 3142 states have internal predecessors, (3960), 1187 states have call successors, (1187), 369 states have call predecessors, (1187), 368 states have return successors, (1176), 1168 states have call predecessors, (1176), 1176 states have call successors, (1176) [2021-11-17 04:37:46,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4628 states to 4628 states and 6323 transitions. [2021-11-17 04:37:46,623 INFO L78 Accepts]: Start accepts. Automaton has 4628 states and 6323 transitions. Word has length 214 [2021-11-17 04:37:46,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:46,624 INFO L470 AbstractCegarLoop]: Abstraction has 4628 states and 6323 transitions. [2021-11-17 04:37:46,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:46,624 INFO L276 IsEmpty]: Start isEmpty. Operand 4628 states and 6323 transitions. [2021-11-17 04:37:46,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-17 04:37:46,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:46,627 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:46,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 04:37:46,627 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:46,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2111516436, now seen corresponding path program 1 times [2021-11-17 04:37:46,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:46,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201886446] [2021-11-17 04:37:46,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:46,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:46,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:46,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:46,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:46,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:46,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:37:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:46,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2021-11-17 04:37:46,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:46,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201886446] [2021-11-17 04:37:46,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201886446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:46,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:46,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:37:46,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536854319] [2021-11-17 04:37:46,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:46,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:37:46,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:46,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:37:46,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:37:46,989 INFO L87 Difference]: Start difference. First operand 4628 states and 6323 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:49,004 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 04:37:50,049 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 04:37:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:53,740 INFO L93 Difference]: Finished difference Result 13781 states and 18890 transitions. [2021-11-17 04:37:53,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:37:53,741 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 215 [2021-11-17 04:37:53,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:53,777 INFO L225 Difference]: With dead ends: 13781 [2021-11-17 04:37:53,777 INFO L226 Difference]: Without dead ends: 9208 [2021-11-17 04:37:53,788 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 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 04:37:53,789 INFO L933 BasicCegarLoop]: 1788 mSDtfsCounter, 2117 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 1667 mSolverCounterSat, 1304 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 4132 SdHoareTripleChecker+Invalid, 2972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1304 IncrementalHoareTripleChecker+Valid, 1667 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:53,789 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2324 Valid, 4132 Invalid, 2972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1304 Valid, 1667 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-17 04:37:53,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9208 states. [2021-11-17 04:37:53,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9208 to 8914. [2021-11-17 04:37:54,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8914 states, 5952 states have (on average 1.2923387096774193) internal successors, (7692), 6096 states have internal predecessors, (7692), 2247 states have call successors, (2247), 724 states have call predecessors, (2247), 714 states have return successors, (2234), 2190 states have call predecessors, (2234), 2234 states have call successors, (2234) [2021-11-17 04:37:54,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8914 states to 8914 states and 12173 transitions. [2021-11-17 04:37:54,028 INFO L78 Accepts]: Start accepts. Automaton has 8914 states and 12173 transitions. Word has length 215 [2021-11-17 04:37:54,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:54,029 INFO L470 AbstractCegarLoop]: Abstraction has 8914 states and 12173 transitions. [2021-11-17 04:37:54,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:54,029 INFO L276 IsEmpty]: Start isEmpty. Operand 8914 states and 12173 transitions. [2021-11-17 04:37:54,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-17 04:37:54,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:54,031 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:54,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 04:37:54,031 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:54,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:54,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1032979080, now seen corresponding path program 1 times [2021-11-17 04:37:54,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:54,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431077948] [2021-11-17 04:37:54,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:54,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:54,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:54,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:54,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:37:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2021-11-17 04:37:54,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:54,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431077948] [2021-11-17 04:37:54,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431077948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:54,327 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:54,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:37:54,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819664844] [2021-11-17 04:37:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:54,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:37:54,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:54,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:37:54,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:37:54,329 INFO L87 Difference]: Start difference. First operand 8914 states and 12173 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:56,344 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 04:37:58,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:37:58,141 INFO L93 Difference]: Finished difference Result 10100 states and 13450 transitions. [2021-11-17 04:37:58,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:37:58,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 216 [2021-11-17 04:37:58,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:37:58,224 INFO L225 Difference]: With dead ends: 10100 [2021-11-17 04:37:58,224 INFO L226 Difference]: Without dead ends: 10096 [2021-11-17 04:37:58,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 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 04:37:58,228 INFO L933 BasicCegarLoop]: 1354 mSDtfsCounter, 2116 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 1239 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1239 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:37:58,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2293 Valid, 2080 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1239 Valid, 686 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-17 04:37:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10096 states. [2021-11-17 04:37:58,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10096 to 9838. [2021-11-17 04:37:58,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9838 states, 6604 states have (on average 1.2733192004845548) internal successors, (8409), 6742 states have internal predecessors, (8409), 2317 states have call successors, (2317), 930 states have call predecessors, (2317), 916 states have return successors, (2306), 2262 states have call predecessors, (2306), 2306 states have call successors, (2306) [2021-11-17 04:37:58,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9838 states to 9838 states and 13032 transitions. [2021-11-17 04:37:58,481 INFO L78 Accepts]: Start accepts. Automaton has 9838 states and 13032 transitions. Word has length 216 [2021-11-17 04:37:58,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:37:58,482 INFO L470 AbstractCegarLoop]: Abstraction has 9838 states and 13032 transitions. [2021-11-17 04:37:58,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:37:58,482 INFO L276 IsEmpty]: Start isEmpty. Operand 9838 states and 13032 transitions. [2021-11-17 04:37:58,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-17 04:37:58,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:37:58,484 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:37:58,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 04:37:58,484 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:37:58,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:37:58,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1958054545, now seen corresponding path program 1 times [2021-11-17 04:37:58,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:37:58,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631931031] [2021-11-17 04:37:58,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:37:58,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:37:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:37:58,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:37:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:37:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:58,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:37:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:37:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:37:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:58,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:37:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:37:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:37:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:37:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:37:58,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:37:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:37:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:37:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:37:58,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:37:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:37:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:37:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:37:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:37:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2021-11-17 04:37:58,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:37:58,786 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631931031] [2021-11-17 04:37:58,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631931031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:37:58,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:37:58,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:37:58,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842709645] [2021-11-17 04:37:58,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:37:58,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:37:58,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:37:58,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:37:58,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:37:58,788 INFO L87 Difference]: Start difference. First operand 9838 states and 13032 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:38:00,802 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:02,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:06,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:38:06,625 INFO L93 Difference]: Finished difference Result 28319 states and 37852 transitions. [2021-11-17 04:38:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:38:06,626 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 217 [2021-11-17 04:38:06,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:38:06,708 INFO L225 Difference]: With dead ends: 28319 [2021-11-17 04:38:06,708 INFO L226 Difference]: Without dead ends: 18526 [2021-11-17 04:38:06,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 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 04:38:06,742 INFO L933 BasicCegarLoop]: 1558 mSDtfsCounter, 2241 mSDsluCounter, 2048 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 1490 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2439 SdHoareTripleChecker+Valid, 3606 SdHoareTripleChecker+Invalid, 3045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1490 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:38:06,743 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2439 Valid, 3606 Invalid, 3045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1490 Valid, 1553 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2021-11-17 04:38:06,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18526 states. [2021-11-17 04:38:07,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18526 to 17893. [2021-11-17 04:38:07,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17893 states, 12083 states have (on average 1.2818008772655798) internal successors, (15488), 12366 states have internal predecessors, (15488), 4176 states have call successors, (4176), 1678 states have call predecessors, (4176), 1633 states have return successors, (4194), 4021 states have call predecessors, (4194), 4162 states have call successors, (4194) [2021-11-17 04:38:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17893 states to 17893 states and 23858 transitions. [2021-11-17 04:38:07,324 INFO L78 Accepts]: Start accepts. Automaton has 17893 states and 23858 transitions. Word has length 217 [2021-11-17 04:38:07,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:38:07,325 INFO L470 AbstractCegarLoop]: Abstraction has 17893 states and 23858 transitions. [2021-11-17 04:38:07,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-17 04:38:07,325 INFO L276 IsEmpty]: Start isEmpty. Operand 17893 states and 23858 transitions. [2021-11-17 04:38:07,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-17 04:38:07,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:38:07,330 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-11-17 04:38:07,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 04:38:07,331 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:38:07,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:38:07,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1622173081, now seen corresponding path program 1 times [2021-11-17 04:38:07,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:38:07,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021418497] [2021-11-17 04:38:07,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:38:07,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:38:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:38:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:07,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:38:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:38:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:07,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:38:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:07,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:38:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:38:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:07,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:38:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:07,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:07,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:38:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:38:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:38:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:38:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:38:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:38:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:38:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:38:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:38:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:38:07,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 04:38:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:07,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:38:07,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-17 04:38:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-11-17 04:38:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 04:38:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-11-17 04:38:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:07,639 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2021-11-17 04:38:07,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:38:07,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021418497] [2021-11-17 04:38:07,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021418497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:38:07,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:38:07,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:38:07,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846850797] [2021-11-17 04:38:07,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:38:07,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:38:07,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:38:07,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:38:07,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:38:07,642 INFO L87 Difference]: Start difference. First operand 17893 states and 23858 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 04:38:09,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:11,522 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:12,596 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:14,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:38:14,938 INFO L93 Difference]: Finished difference Result 27352 states and 36498 transitions. [2021-11-17 04:38:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 04:38:14,939 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 269 [2021-11-17 04:38:14,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:38:14,974 INFO L225 Difference]: With dead ends: 27352 [2021-11-17 04:38:14,974 INFO L226 Difference]: Without dead ends: 9512 [2021-11-17 04:38:15,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:38:15,020 INFO L933 BasicCegarLoop]: 1352 mSDtfsCounter, 581 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 3504 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-17 04:38:15,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [625 Valid, 3504 Invalid, 1826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-11-17 04:38:15,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9512 states. [2021-11-17 04:38:15,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9512 to 9164. [2021-11-17 04:38:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9164 states, 6193 states have (on average 1.2820926852898433) internal successors, (7940), 6339 states have internal predecessors, (7940), 2132 states have call successors, (2132), 862 states have call predecessors, (2132), 838 states have return successors, (2134), 2050 states have call predecessors, (2134), 2118 states have call successors, (2134) [2021-11-17 04:38:15,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9164 states to 9164 states and 12206 transitions. [2021-11-17 04:38:15,351 INFO L78 Accepts]: Start accepts. Automaton has 9164 states and 12206 transitions. Word has length 269 [2021-11-17 04:38:15,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:38:15,352 INFO L470 AbstractCegarLoop]: Abstraction has 9164 states and 12206 transitions. [2021-11-17 04:38:15,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (28), 5 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-17 04:38:15,352 INFO L276 IsEmpty]: Start isEmpty. Operand 9164 states and 12206 transitions. [2021-11-17 04:38:15,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-17 04:38:15,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:38:15,357 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2021-11-17 04:38:15,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 04:38:15,357 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:38:15,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:38:15,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1634362265, now seen corresponding path program 1 times [2021-11-17 04:38:15,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:38:15,358 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842750730] [2021-11-17 04:38:15,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:38:15,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:38:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:38:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:38:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:38:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:38:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:38:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:38:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:38:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:38:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:38:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:38:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:38:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:38:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:38:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:38:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:38:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:38:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:38:15,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:38:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:38:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:15,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-17 04:38:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-11-17 04:38:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 04:38:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:15,653 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-17 04:38:15,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:38:15,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842750730] [2021-11-17 04:38:15,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842750730] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:38:15,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:38:15,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:38:15,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838876485] [2021-11-17 04:38:15,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:38:15,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:38:15,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:38:15,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:38:15,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:38:15,655 INFO L87 Difference]: Start difference. First operand 9164 states and 12206 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 04:38:17,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:19,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:22,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:38:22,021 INFO L93 Difference]: Finished difference Result 23137 states and 30802 transitions. [2021-11-17 04:38:22,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:38:22,022 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 277 [2021-11-17 04:38:22,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:38:22,063 INFO L225 Difference]: With dead ends: 23137 [2021-11-17 04:38:22,063 INFO L226 Difference]: Without dead ends: 14134 [2021-11-17 04:38:22,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 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 04:38:22,087 INFO L933 BasicCegarLoop]: 1831 mSDtfsCounter, 2159 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 1702 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 3510 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1702 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-17 04:38:22,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2324 Valid, 3510 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1702 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2021-11-17 04:38:22,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14134 states. [2021-11-17 04:38:22,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14134 to 13590. [2021-11-17 04:38:22,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13590 states, 9238 states have (on average 1.2777657501623727) internal successors, (11804), 9450 states have internal predecessors, (11804), 3066 states have call successors, (3066), 1321 states have call predecessors, (3066), 1285 states have return successors, (3068), 2951 states have call predecessors, (3068), 3052 states have call successors, (3068) [2021-11-17 04:38:22,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13590 states to 13590 states and 17938 transitions. [2021-11-17 04:38:22,502 INFO L78 Accepts]: Start accepts. Automaton has 13590 states and 17938 transitions. Word has length 277 [2021-11-17 04:38:22,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:38:22,502 INFO L470 AbstractCegarLoop]: Abstraction has 13590 states and 17938 transitions. [2021-11-17 04:38:22,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 04:38:22,503 INFO L276 IsEmpty]: Start isEmpty. Operand 13590 states and 17938 transitions. [2021-11-17 04:38:22,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-17 04:38:22,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:38:22,506 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2021-11-17 04:38:22,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-17 04:38:22,507 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:38:22,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:38:22,507 INFO L85 PathProgramCache]: Analyzing trace with hash 967665357, now seen corresponding path program 1 times [2021-11-17 04:38:22,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:38:22,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706749370] [2021-11-17 04:38:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:38:22,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:38:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:38:22,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:38:22,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:38:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:38:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:38:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:38:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:38:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:38:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:38:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:38:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:38:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:38:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:38:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:38:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:38:22,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:38:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:38:22,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:38:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:38:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:38:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 04:38:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 04:38:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:38:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:22,873 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2021-11-17 04:38:22,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:38:22,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706749370] [2021-11-17 04:38:22,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706749370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:38:22,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:38:22,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 04:38:22,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163509038] [2021-11-17 04:38:22,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:38:22,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 04:38:22,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:38:22,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 04:38:22,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:38:22,875 INFO L87 Difference]: Start difference. First operand 13590 states and 17938 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (27), 7 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 04:38:24,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:28,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:38:28,283 INFO L93 Difference]: Finished difference Result 13996 states and 18554 transitions. [2021-11-17 04:38:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 04:38:28,284 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (27), 7 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 286 [2021-11-17 04:38:28,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:38:28,314 INFO L225 Difference]: With dead ends: 13996 [2021-11-17 04:38:28,315 INFO L226 Difference]: Without dead ends: 13993 [2021-11-17 04:38:28,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 04:38:28,319 INFO L933 BasicCegarLoop]: 1301 mSDtfsCounter, 1712 mSDsluCounter, 1207 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 1623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 2508 SdHoareTripleChecker+Invalid, 3419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1623 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2021-11-17 04:38:28,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1815 Valid, 2508 Invalid, 3419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1623 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2021-11-17 04:38:28,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13993 states. [2021-11-17 04:38:28,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13993 to 13589. [2021-11-17 04:38:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13589 states, 9238 states have (on average 1.2763585191599913) internal successors, (11791), 9449 states have internal predecessors, (11791), 3065 states have call successors, (3065), 1321 states have call predecessors, (3065), 1285 states have return successors, (3068), 2951 states have call predecessors, (3068), 3052 states have call successors, (3068) [2021-11-17 04:38:28,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13589 states to 13589 states and 17924 transitions. [2021-11-17 04:38:28,679 INFO L78 Accepts]: Start accepts. Automaton has 13589 states and 17924 transitions. Word has length 286 [2021-11-17 04:38:28,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:38:28,679 INFO L470 AbstractCegarLoop]: Abstraction has 13589 states and 17924 transitions. [2021-11-17 04:38:28,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (27), 7 states have call predecessors, (27), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-17 04:38:28,679 INFO L276 IsEmpty]: Start isEmpty. Operand 13589 states and 17924 transitions. [2021-11-17 04:38:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-17 04:38:28,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:38:28,683 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2021-11-17 04:38:28,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-17 04:38:28,683 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:38:28,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:38:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1163293632, now seen corresponding path program 1 times [2021-11-17 04:38:28,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:38:28,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241838048] [2021-11-17 04:38:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:38:28,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:38:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:38:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:38:28,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:38:28,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:38:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:38:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:38:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:38:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:38:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:38:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:38:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:38:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:28,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:38:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:38:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:38:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:38:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:38:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:38:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:29,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:38:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:38:29,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:29,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-11-17 04:38:29,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:38:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-11-17 04:38:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 04:38:29,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-11-17 04:38:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-11-17 04:38:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2021-11-17 04:38:29,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:38:29,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241838048] [2021-11-17 04:38:29,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241838048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:38:29,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:38:29,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 04:38:29,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687242245] [2021-11-17 04:38:29,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:38:29,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 04:38:29,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:38:29,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 04:38:29,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 04:38:29,091 INFO L87 Difference]: Start difference. First operand 13589 states and 17924 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-17 04:38:31,116 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:32,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:35,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:38:35,231 INFO L93 Difference]: Finished difference Result 32322 states and 42728 transitions. [2021-11-17 04:38:35,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:38:35,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 302 [2021-11-17 04:38:35,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:38:35,282 INFO L225 Difference]: With dead ends: 32322 [2021-11-17 04:38:35,282 INFO L226 Difference]: Without dead ends: 18894 [2021-11-17 04:38:35,309 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:38:35,310 INFO L933 BasicCegarLoop]: 1736 mSDtfsCounter, 2178 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 1646 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 2730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1646 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:38:35,310 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2367 Valid, 3312 Invalid, 2730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1646 Valid, 1083 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2021-11-17 04:38:35,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18894 states. [2021-11-17 04:38:35,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18894 to 18297. [2021-11-17 04:38:35,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18297 states, 12548 states have (on average 1.2800446286260758) internal successors, (16062), 12853 states have internal predecessors, (16062), 4003 states have call successors, (4003), 1785 states have call predecessors, (4003), 1745 states have return successors, (4014), 3855 states have call predecessors, (4014), 3990 states have call successors, (4014) [2021-11-17 04:38:35,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18297 states to 18297 states and 24079 transitions. [2021-11-17 04:38:35,909 INFO L78 Accepts]: Start accepts. Automaton has 18297 states and 24079 transitions. Word has length 302 [2021-11-17 04:38:35,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:38:35,910 INFO L470 AbstractCegarLoop]: Abstraction has 18297 states and 24079 transitions. [2021-11-17 04:38:35,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-17 04:38:35,911 INFO L276 IsEmpty]: Start isEmpty. Operand 18297 states and 24079 transitions. [2021-11-17 04:38:35,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-11-17 04:38:35,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:38:35,915 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2021-11-17 04:38:35,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-17 04:38:35,915 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:38:35,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:38:35,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1648032103, now seen corresponding path program 1 times [2021-11-17 04:38:35,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:38:35,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094132938] [2021-11-17 04:38:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:38:35,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:38:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:38:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:38:36,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:38:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:38:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:38:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:38:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:38:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:38:36,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:38:36,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:38:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:38:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:38:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:38:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:38:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:38:36,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:38:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:38:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:38:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:38:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:38:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 04:38:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 04:38:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:38:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 04:38:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 04:38:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:38:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 04:38:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2021-11-17 04:38:36,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:38:36,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094132938] [2021-11-17 04:38:36,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094132938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:38:36,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:38:36,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 04:38:36,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474134375] [2021-11-17 04:38:36,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:38:36,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 04:38:36,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:38:36,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 04:38:36,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:38:36,216 INFO L87 Difference]: Start difference. First operand 18297 states and 24079 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (31), 8 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 04:38:38,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:41,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:38:45,677 INFO L93 Difference]: Finished difference Result 37105 states and 48895 transitions. [2021-11-17 04:38:45,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-17 04:38:45,677 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (31), 8 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 310 [2021-11-17 04:38:45,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:38:45,733 INFO L225 Difference]: With dead ends: 37105 [2021-11-17 04:38:45,733 INFO L226 Difference]: Without dead ends: 18969 [2021-11-17 04:38:45,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-17 04:38:45,772 INFO L933 BasicCegarLoop]: 2137 mSDtfsCounter, 2962 mSDsluCounter, 2550 mSDsCounter, 0 mSdLazyCounter, 2925 mSolverCounterSat, 2949 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3058 SdHoareTripleChecker+Valid, 4687 SdHoareTripleChecker+Invalid, 5876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2949 IncrementalHoareTripleChecker+Valid, 2925 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2021-11-17 04:38:45,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3058 Valid, 4687 Invalid, 5876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2949 Valid, 2925 Invalid, 2 Unknown, 0 Unchecked, 8.8s Time] [2021-11-17 04:38:45,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18969 states. [2021-11-17 04:38:46,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18969 to 18250. [2021-11-17 04:38:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18250 states, 12501 states have (on average 1.2766978641708664) internal successors, (15960), 12834 states have internal predecessors, (15960), 3996 states have call successors, (3996), 1765 states have call predecessors, (3996), 1752 states have return successors, (3979), 3847 states have call predecessors, (3979), 3967 states have call successors, (3979) [2021-11-17 04:38:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18250 states to 18250 states and 23935 transitions. [2021-11-17 04:38:46,406 INFO L78 Accepts]: Start accepts. Automaton has 18250 states and 23935 transitions. Word has length 310 [2021-11-17 04:38:46,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:38:46,407 INFO L470 AbstractCegarLoop]: Abstraction has 18250 states and 23935 transitions. [2021-11-17 04:38:46,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (31), 8 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 04:38:46,407 INFO L276 IsEmpty]: Start isEmpty. Operand 18250 states and 23935 transitions. [2021-11-17 04:38:46,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-17 04:38:46,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:38:46,413 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2021-11-17 04:38:46,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-17 04:38:46,413 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:38:46,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:38:46,414 INFO L85 PathProgramCache]: Analyzing trace with hash -616563079, now seen corresponding path program 1 times [2021-11-17 04:38:46,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:38:46,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759526948] [2021-11-17 04:38:46,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:38:46,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:38:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:38:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:38:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:38:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:38:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:38:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:38:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:38:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:38:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:38:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:38:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:38:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:38:46,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:38:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:38:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:38:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:38:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:38:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:38:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:38:46,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-11-17 04:38:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2021-11-17 04:38:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-11-17 04:38:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-11-17 04:38:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 04:38:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-11-17 04:38:46,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-11-17 04:38:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 04:38:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2021-11-17 04:38:46,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:38:46,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759526948] [2021-11-17 04:38:46,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759526948] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:38:46,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:38:46,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 04:38:46,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148673707] [2021-11-17 04:38:46,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:38:46,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 04:38:46,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:38:46,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 04:38:46,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:38:46,837 INFO L87 Difference]: Start difference. First operand 18250 states and 23935 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 04:38:48,855 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:51,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:38:51,633 INFO L93 Difference]: Finished difference Result 19909 states and 26021 transitions. [2021-11-17 04:38:51,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 04:38:51,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 317 [2021-11-17 04:38:51,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:38:51,689 INFO L225 Difference]: With dead ends: 19909 [2021-11-17 04:38:51,689 INFO L226 Difference]: Without dead ends: 18676 [2021-11-17 04:38:51,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-17 04:38:51,703 INFO L933 BasicCegarLoop]: 1372 mSDtfsCounter, 939 mSDsluCounter, 4437 mSDsCounter, 0 mSdLazyCounter, 2020 mSolverCounterSat, 1095 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1007 SdHoareTripleChecker+Valid, 5809 SdHoareTripleChecker+Invalid, 3116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1095 IncrementalHoareTripleChecker+Valid, 2020 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:38:51,703 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1007 Valid, 5809 Invalid, 3116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1095 Valid, 2020 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-17 04:38:51,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18676 states. [2021-11-17 04:38:52,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18676 to 17550. [2021-11-17 04:38:52,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17550 states, 12094 states have (on average 1.2750124028443857) internal successors, (15420), 12380 states have internal predecessors, (15420), 3740 states have call successors, (3740), 1728 states have call predecessors, (3740), 1715 states have return successors, (3725), 3626 states have call predecessors, (3725), 3713 states have call successors, (3725) [2021-11-17 04:38:52,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17550 states to 17550 states and 22885 transitions. [2021-11-17 04:38:52,245 INFO L78 Accepts]: Start accepts. Automaton has 17550 states and 22885 transitions. Word has length 317 [2021-11-17 04:38:52,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:38:52,245 INFO L470 AbstractCegarLoop]: Abstraction has 17550 states and 22885 transitions. [2021-11-17 04:38:52,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 5 states have internal predecessors, (103), 2 states have call successors, (33), 6 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 04:38:52,246 INFO L276 IsEmpty]: Start isEmpty. Operand 17550 states and 22885 transitions. [2021-11-17 04:38:52,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-17 04:38:52,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:38:52,251 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 3, 3, 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] [2021-11-17 04:38:52,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-17 04:38:52,251 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:38:52,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:38:52,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1686033832, now seen corresponding path program 1 times [2021-11-17 04:38:52,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:38:52,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542953048] [2021-11-17 04:38:52,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:38:52,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:38:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:38:52,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:38:52,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:38:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:38:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:38:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:38:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:38:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:38:52,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:38:52,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:38:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:38:52,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:38:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:38:52,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:38:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:38:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:38:52,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:38:52,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:38:52,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:38:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:38:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-17 04:38:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:38:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:38:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 04:38:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 04:38:52,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-11-17 04:38:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2021-11-17 04:38:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:38:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2021-11-17 04:38:52,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:38:52,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542953048] [2021-11-17 04:38:52,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542953048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:38:52,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:38:52,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 04:38:52,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74395829] [2021-11-17 04:38:52,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:38:52,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 04:38:52,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:38:52,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 04:38:52,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:38:52,704 INFO L87 Difference]: Start difference. First operand 17550 states and 22885 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 04:38:54,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:55,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:38:57,269 WARN L515 Checker$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 04:39:03,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:39:03,476 INFO L93 Difference]: Finished difference Result 42277 states and 55293 transitions. [2021-11-17 04:39:03,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 04:39:03,477 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 314 [2021-11-17 04:39:03,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:39:03,553 INFO L225 Difference]: With dead ends: 42277 [2021-11-17 04:39:03,554 INFO L226 Difference]: Without dead ends: 24888 [2021-11-17 04:39:03,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-11-17 04:39:03,589 INFO L933 BasicCegarLoop]: 2320 mSDtfsCounter, 2002 mSDsluCounter, 6977 mSDsCounter, 0 mSdLazyCounter, 3770 mSolverCounterSat, 1171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 9297 SdHoareTripleChecker+Invalid, 4941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1171 IncrementalHoareTripleChecker+Valid, 3770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-11-17 04:39:03,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2121 Valid, 9297 Invalid, 4941 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1171 Valid, 3770 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2021-11-17 04:39:03,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24888 states. [2021-11-17 04:39:04,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24888 to 17586. [2021-11-17 04:39:04,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17586 states, 12130 states have (on average 1.2741962077493818) internal successors, (15456), 12416 states have internal predecessors, (15456), 3740 states have call successors, (3740), 1728 states have call predecessors, (3740), 1715 states have return successors, (3725), 3626 states have call predecessors, (3725), 3713 states have call successors, (3725) [2021-11-17 04:39:04,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17586 states to 17586 states and 22921 transitions. [2021-11-17 04:39:04,243 INFO L78 Accepts]: Start accepts. Automaton has 17586 states and 22921 transitions. Word has length 314 [2021-11-17 04:39:04,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:39:04,244 INFO L470 AbstractCegarLoop]: Abstraction has 17586 states and 22921 transitions. [2021-11-17 04:39:04,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 04:39:04,244 INFO L276 IsEmpty]: Start isEmpty. Operand 17586 states and 22921 transitions. [2021-11-17 04:39:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-11-17 04:39:04,251 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:39:04,252 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2021-11-17 04:39:04,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-17 04:39:04,252 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:39:04,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:39:04,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1729109080, now seen corresponding path program 1 times [2021-11-17 04:39:04,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:39:04,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965924428] [2021-11-17 04:39:04,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:39:04,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:39:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:39:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:39:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:39:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:39:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:39:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:39:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:39:04,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:39:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:39:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:39:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:39:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:39:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:39:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:39:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:39:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:39:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:39:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:39:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:39:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-11-17 04:39:04,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:39:04,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:39:04,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 04:39:04,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 04:39:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-11-17 04:39:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-17 04:39:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 04:39:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 04:39:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:04,632 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2021-11-17 04:39:04,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:39:04,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965924428] [2021-11-17 04:39:04,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965924428] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:39:04,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:39:04,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 04:39:04,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470427298] [2021-11-17 04:39:04,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:39:04,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 04:39:04,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:39:04,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 04:39:04,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-17 04:39:04,634 INFO L87 Difference]: Start difference. First operand 17586 states and 22921 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (32), 8 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 04:39:06,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:08,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:11,831 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:13,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:18,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:39:18,538 INFO L93 Difference]: Finished difference Result 35669 states and 46589 transitions. [2021-11-17 04:39:18,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 04:39:18,539 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (32), 8 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 332 [2021-11-17 04:39:18,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:39:18,593 INFO L225 Difference]: With dead ends: 35669 [2021-11-17 04:39:18,593 INFO L226 Difference]: Without dead ends: 18244 [2021-11-17 04:39:18,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-17 04:39:18,632 INFO L933 BasicCegarLoop]: 1336 mSDtfsCounter, 466 mSDsluCounter, 6140 mSDsCounter, 0 mSdLazyCounter, 3406 mSolverCounterSat, 381 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 7476 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 3406 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:39:18,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [551 Valid, 7476 Invalid, 3791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 3406 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2021-11-17 04:39:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18244 states. [2021-11-17 04:39:19,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18244 to 17538. [2021-11-17 04:39:19,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17538 states, 12106 states have (on average 1.273748554435817) internal successors, (15420), 12380 states have internal predecessors, (15420), 3728 states have call successors, (3728), 1728 states have call predecessors, (3728), 1703 states have return successors, (3701), 3614 states have call predecessors, (3701), 3701 states have call successors, (3701) [2021-11-17 04:39:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17538 states to 17538 states and 22849 transitions. [2021-11-17 04:39:19,283 INFO L78 Accepts]: Start accepts. Automaton has 17538 states and 22849 transitions. Word has length 332 [2021-11-17 04:39:19,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:39:19,284 INFO L470 AbstractCegarLoop]: Abstraction has 17538 states and 22849 transitions. [2021-11-17 04:39:19,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 5 states have internal predecessors, (118), 2 states have call successors, (32), 8 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 04:39:19,284 INFO L276 IsEmpty]: Start isEmpty. Operand 17538 states and 22849 transitions. [2021-11-17 04:39:19,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-17 04:39:19,313 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:39:19,314 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 3, 3, 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] [2021-11-17 04:39:19,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-17 04:39:19,314 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:39:19,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:39:19,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1289056587, now seen corresponding path program 1 times [2021-11-17 04:39:19,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:39:19,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000490670] [2021-11-17 04:39:19,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:39:19,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:39:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:39:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:39:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:39:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:39:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:39:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:39:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:39:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:39:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:39:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:39:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:39:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:39:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:39:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:39:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:39:19,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:39:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:39:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:39:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:39:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:39:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 04:39:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 04:39:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:39:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 04:39:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 04:39:19,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-17 04:39:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 04:39:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 04:39:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-17 04:39:19,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:39:19,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000490670] [2021-11-17 04:39:19,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000490670] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:39:19,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:39:19,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 04:39:19,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537821045] [2021-11-17 04:39:19,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:39:19,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 04:39:19,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:39:19,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 04:39:19,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-17 04:39:19,654 INFO L87 Difference]: Start difference. First operand 17538 states and 22849 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 04:39:21,266 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:23,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:24,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:25,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:32,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:39:32,099 INFO L93 Difference]: Finished difference Result 31575 states and 40950 transitions. [2021-11-17 04:39:32,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 04:39:32,100 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 330 [2021-11-17 04:39:32,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:39:32,139 INFO L225 Difference]: With dead ends: 31575 [2021-11-17 04:39:32,140 INFO L226 Difference]: Without dead ends: 14198 [2021-11-17 04:39:32,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-11-17 04:39:32,175 INFO L933 BasicCegarLoop]: 2117 mSDtfsCounter, 2193 mSDsluCounter, 3095 mSDsCounter, 0 mSdLazyCounter, 3933 mSolverCounterSat, 1802 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2392 SdHoareTripleChecker+Valid, 5212 SdHoareTripleChecker+Invalid, 5735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1802 IncrementalHoareTripleChecker+Valid, 3933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-11-17 04:39:32,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2392 Valid, 5212 Invalid, 5735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1802 Valid, 3933 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2021-11-17 04:39:32,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14198 states. [2021-11-17 04:39:32,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14198 to 13581. [2021-11-17 04:39:32,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13581 states, 9386 states have (on average 1.2645429362880887) internal successors, (11869), 9582 states have internal predecessors, (11869), 2811 states have call successors, (2811), 1394 states have call predecessors, (2811), 1383 states have return successors, (2786), 2741 states have call predecessors, (2786), 2786 states have call successors, (2786) [2021-11-17 04:39:32,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13581 states to 13581 states and 17466 transitions. [2021-11-17 04:39:32,587 INFO L78 Accepts]: Start accepts. Automaton has 13581 states and 17466 transitions. Word has length 330 [2021-11-17 04:39:32,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:39:32,588 INFO L470 AbstractCegarLoop]: Abstraction has 13581 states and 17466 transitions. [2021-11-17 04:39:32,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (32), 7 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 04:39:32,588 INFO L276 IsEmpty]: Start isEmpty. Operand 13581 states and 17466 transitions. [2021-11-17 04:39:32,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-17 04:39:32,594 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:39:32,594 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 3, 3, 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] [2021-11-17 04:39:32,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-17 04:39:32,594 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:39:32,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:39:32,595 INFO L85 PathProgramCache]: Analyzing trace with hash -299291315, now seen corresponding path program 1 times [2021-11-17 04:39:32,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:39:32,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100973629] [2021-11-17 04:39:32,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:39:32,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:39:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:39:32,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:39:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:39:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:39:32,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:39:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:39:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:39:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:39:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:39:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:39:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:39:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:39:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:39:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:39:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:39:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:39:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:39:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:39:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:39:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:32,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:39:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 04:39:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 04:39:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:39:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2021-11-17 04:39:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-11-17 04:39:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-17 04:39:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2021-11-17 04:39:32,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 04:39:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:32,971 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2021-11-17 04:39:32,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:39:32,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100973629] [2021-11-17 04:39:32,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100973629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:39:32,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:39:32,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 04:39:32,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349056471] [2021-11-17 04:39:32,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:39:32,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 04:39:32,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:39:32,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 04:39:32,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:39:32,973 INFO L87 Difference]: Start difference. First operand 13581 states and 17466 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 5 states have internal predecessors, (117), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 04:39:34,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:36,243 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:37,770 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 04:39:47,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:39:47,385 INFO L93 Difference]: Finished difference Result 32946 states and 42310 transitions. [2021-11-17 04:39:47,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 04:39:47,386 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 5 states have internal predecessors, (117), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 330 [2021-11-17 04:39:47,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:39:47,432 INFO L225 Difference]: With dead ends: 32946 [2021-11-17 04:39:47,432 INFO L226 Difference]: Without dead ends: 19526 [2021-11-17 04:39:47,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-11-17 04:39:47,457 INFO L933 BasicCegarLoop]: 2125 mSDtfsCounter, 2162 mSDsluCounter, 5296 mSDsCounter, 0 mSdLazyCounter, 6473 mSolverCounterSat, 1791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2283 SdHoareTripleChecker+Valid, 7421 SdHoareTripleChecker+Invalid, 8264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1791 IncrementalHoareTripleChecker+Valid, 6473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:39:47,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2283 Valid, 7421 Invalid, 8264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1791 Valid, 6473 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2021-11-17 04:39:47,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19526 states. [2021-11-17 04:39:47,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19526 to 13635. [2021-11-17 04:39:47,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13635 states, 9422 states have (on average 1.2635321587773296) internal successors, (11905), 9618 states have internal predecessors, (11905), 2829 states have call successors, (2829), 1394 states have call predecessors, (2829), 1383 states have return successors, (2804), 2759 states have call predecessors, (2804), 2804 states have call successors, (2804) [2021-11-17 04:39:47,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13635 states to 13635 states and 17538 transitions. [2021-11-17 04:39:47,931 INFO L78 Accepts]: Start accepts. Automaton has 13635 states and 17538 transitions. Word has length 330 [2021-11-17 04:39:47,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:39:47,932 INFO L470 AbstractCegarLoop]: Abstraction has 13635 states and 17538 transitions. [2021-11-17 04:39:47,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 5 states have internal predecessors, (117), 3 states have call successors, (32), 6 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-17 04:39:47,932 INFO L276 IsEmpty]: Start isEmpty. Operand 13635 states and 17538 transitions. [2021-11-17 04:39:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-17 04:39:47,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:39:47,938 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 3, 3, 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] [2021-11-17 04:39:47,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-17 04:39:47,938 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:39:47,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:39:47,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1034020350, now seen corresponding path program 1 times [2021-11-17 04:39:47,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:39:47,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349843723] [2021-11-17 04:39:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:39:47,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:39:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:39:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:39:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:39:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:39:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:39:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:39:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:39:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:39:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:39:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:39:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:39:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:39:48,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:39:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:39:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:39:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:39:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:39:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:39:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:39:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:39:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 04:39:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 04:39:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:39:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:39:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-11-17 04:39:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-11-17 04:39:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-11-17 04:39:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-11-17 04:39:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:39:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2021-11-17 04:39:48,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:39:48,316 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349843723] [2021-11-17 04:39:48,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349843723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:39:48,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:39:48,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-17 04:39:48,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103419192] [2021-11-17 04:39:48,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:39:48,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-17 04:39:48,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:39:48,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-17 04:39:48,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-17 04:39:48,318 INFO L87 Difference]: Start difference. First operand 13635 states and 17538 transitions. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 7 states have internal predecessors, (121), 3 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-17 04:39:51,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:52,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:54,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:39:57,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:04,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:40:04,875 INFO L93 Difference]: Finished difference Result 32945 states and 42536 transitions. [2021-11-17 04:40:04,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-17 04:40:04,879 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 7 states have internal predecessors, (121), 3 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) Word has length 336 [2021-11-17 04:40:04,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:40:04,933 INFO L225 Difference]: With dead ends: 32945 [2021-11-17 04:40:04,934 INFO L226 Difference]: Without dead ends: 19471 [2021-11-17 04:40:04,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=126, Invalid=630, Unknown=0, NotChecked=0, Total=756 [2021-11-17 04:40:04,965 INFO L933 BasicCegarLoop]: 2275 mSDtfsCounter, 2046 mSDsluCounter, 12989 mSDsCounter, 0 mSdLazyCounter, 7033 mSolverCounterSat, 1275 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 15264 SdHoareTripleChecker+Invalid, 8311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1275 IncrementalHoareTripleChecker+Valid, 7033 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:40:04,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2207 Valid, 15264 Invalid, 8311 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1275 Valid, 7033 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time] [2021-11-17 04:40:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19471 states. [2021-11-17 04:40:05,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19471 to 13716. [2021-11-17 04:40:05,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13716 states, 9458 states have (on average 1.2625290759145698) internal successors, (11941), 9654 states have internal predecessors, (11941), 2865 states have call successors, (2865), 1394 states have call predecessors, (2865), 1392 states have return successors, (2849), 2804 states have call predecessors, (2849), 2840 states have call successors, (2849) [2021-11-17 04:40:05,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13716 states to 13716 states and 17655 transitions. [2021-11-17 04:40:05,559 INFO L78 Accepts]: Start accepts. Automaton has 13716 states and 17655 transitions. Word has length 336 [2021-11-17 04:40:05,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:40:05,559 INFO L470 AbstractCegarLoop]: Abstraction has 13716 states and 17655 transitions. [2021-11-17 04:40:05,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 7 states have internal predecessors, (121), 3 states have call successors, (33), 7 states have call predecessors, (33), 2 states have return successors, (31), 4 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-17 04:40:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 13716 states and 17655 transitions. [2021-11-17 04:40:05,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-11-17 04:40:05,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:40:05,564 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:05,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-17 04:40:05,564 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:40:05,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:40:05,565 INFO L85 PathProgramCache]: Analyzing trace with hash 188522903, now seen corresponding path program 1 times [2021-11-17 04:40:05,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:40:05,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709401095] [2021-11-17 04:40:05,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:40:05,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:40:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:40:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:40:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:40:05,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:40:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:40:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:40:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:40:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:40:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:40:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:40:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:40:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:40:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:40:05,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:40:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:40:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:40:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:40:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:40:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:40:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:40:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 04:40:05,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 04:40:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:40:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 04:40:05,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 04:40:05,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-11-17 04:40:05,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-11-17 04:40:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2021-11-17 04:40:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-11-17 04:40:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 04:40:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 826 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2021-11-17 04:40:05,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:40:05,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709401095] [2021-11-17 04:40:05,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709401095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:40:05,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:40:05,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 04:40:05,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360115291] [2021-11-17 04:40:05,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:40:05,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 04:40:05,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:40:05,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 04:40:05,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 04:40:05,878 INFO L87 Difference]: Start difference. First operand 13716 states and 17655 transitions. Second operand has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 04:40:08,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:15,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:40:15,699 INFO L93 Difference]: Finished difference Result 33243 states and 42730 transitions. [2021-11-17 04:40:15,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 04:40:15,701 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 342 [2021-11-17 04:40:15,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:40:15,758 INFO L225 Difference]: With dead ends: 33243 [2021-11-17 04:40:15,759 INFO L226 Difference]: Without dead ends: 19688 [2021-11-17 04:40:15,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2021-11-17 04:40:15,791 INFO L933 BasicCegarLoop]: 2123 mSDtfsCounter, 2177 mSDsluCounter, 4740 mSDsCounter, 0 mSdLazyCounter, 5683 mSolverCounterSat, 1811 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 6863 SdHoareTripleChecker+Invalid, 7494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1811 IncrementalHoareTripleChecker+Valid, 5683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-17 04:40:15,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2301 Valid, 6863 Invalid, 7494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1811 Valid, 5683 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-11-17 04:40:15,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19688 states. [2021-11-17 04:40:16,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19688 to 13698. [2021-11-17 04:40:16,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13698 states, 9446 states have (on average 1.2625449925894559) internal successors, (11926), 9642 states have internal predecessors, (11926), 2859 states have call successors, (2859), 1394 states have call predecessors, (2859), 1392 states have return successors, (2843), 2798 states have call predecessors, (2843), 2834 states have call successors, (2843) [2021-11-17 04:40:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13698 states to 13698 states and 17628 transitions. [2021-11-17 04:40:16,412 INFO L78 Accepts]: Start accepts. Automaton has 13698 states and 17628 transitions. Word has length 342 [2021-11-17 04:40:16,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:40:16,413 INFO L470 AbstractCegarLoop]: Abstraction has 13698 states and 17628 transitions. [2021-11-17 04:40:16,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.666666666666666) internal successors, (123), 5 states have internal predecessors, (123), 3 states have call successors, (34), 6 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-17 04:40:16,413 INFO L276 IsEmpty]: Start isEmpty. Operand 13698 states and 17628 transitions. [2021-11-17 04:40:16,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-11-17 04:40:16,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:40:16,417 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:40:16,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-17 04:40:16,418 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:40:16,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:40:16,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1198531531, now seen corresponding path program 1 times [2021-11-17 04:40:16,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:40:16,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361350016] [2021-11-17 04:40:16,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:40:16,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:40:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:40:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:40:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:40:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:40:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:40:16,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:40:16,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:40:16,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:40:16,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:40:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:40:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:40:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:40:16,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:40:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:40:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:40:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:40:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:40:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:40:16,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:40:16,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:40:16,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 04:40:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 04:40:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:40:16,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 04:40:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 04:40:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:40:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 04:40:16,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 04:40:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-17 04:40:16,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 04:40:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 04:40:16,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 04:40:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-17 04:40:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-17 04:40:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-11-17 04:40:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:16,755 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2021-11-17 04:40:16,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:40:16,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361350016] [2021-11-17 04:40:16,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361350016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:40:16,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:40:16,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 04:40:16,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721831733] [2021-11-17 04:40:16,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:40:16,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 04:40:16,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:40:16,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 04:40:16,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-17 04:40:16,758 INFO L87 Difference]: Start difference. First operand 13698 states and 17628 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (39), 7 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 04:40:18,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:20,842 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:22,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:26,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:40:26,782 INFO L93 Difference]: Finished difference Result 18315 states and 24827 transitions. [2021-11-17 04:40:26,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-17 04:40:26,783 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (39), 7 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 373 [2021-11-17 04:40:26,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:40:26,828 INFO L225 Difference]: With dead ends: 18315 [2021-11-17 04:40:26,828 INFO L226 Difference]: Without dead ends: 17842 [2021-11-17 04:40:26,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-11-17 04:40:26,837 INFO L933 BasicCegarLoop]: 1842 mSDtfsCounter, 2820 mSDsluCounter, 5611 mSDsCounter, 0 mSdLazyCounter, 3581 mSolverCounterSat, 2170 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2946 SdHoareTripleChecker+Valid, 7453 SdHoareTripleChecker+Invalid, 5753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2170 IncrementalHoareTripleChecker+Valid, 3581 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-17 04:40:26,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2946 Valid, 7453 Invalid, 5753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2170 Valid, 3581 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2021-11-17 04:40:26,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17842 states. [2021-11-17 04:40:27,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17842 to 13410. [2021-11-17 04:40:27,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13410 states, 9266 states have (on average 1.2597668897042953) internal successors, (11673), 9445 states have internal predecessors, (11673), 2758 states have call successors, (2758), 1386 states have call predecessors, (2758), 1385 states have return successors, (2744), 2705 states have call predecessors, (2744), 2735 states have call successors, (2744) [2021-11-17 04:40:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13410 states to 13410 states and 17175 transitions. [2021-11-17 04:40:27,340 INFO L78 Accepts]: Start accepts. Automaton has 13410 states and 17175 transitions. Word has length 373 [2021-11-17 04:40:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:40:27,341 INFO L470 AbstractCegarLoop]: Abstraction has 13410 states and 17175 transitions. [2021-11-17 04:40:27,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 5 states have internal predecessors, (134), 2 states have call successors, (39), 7 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 04:40:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 13410 states and 17175 transitions. [2021-11-17 04:40:27,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-17 04:40:27,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:40:27,345 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 04:40:27,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-17 04:40:27,346 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:40:27,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:40:27,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1014346398, now seen corresponding path program 1 times [2021-11-17 04:40:27,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:40:27,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015673705] [2021-11-17 04:40:27,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:40:27,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:40:27,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:40:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:40:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:40:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:40:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:40:27,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:40:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:40:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:40:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:40:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:40:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:40:27,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:40:27,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:40:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:40:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:40:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:40:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:40:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:40:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:40:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 04:40:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 04:40:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 04:40:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2021-11-17 04:40:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-11-17 04:40:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-17 04:40:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2021-11-17 04:40:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2021-11-17 04:40:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-11-17 04:40:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-11-17 04:40:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-11-17 04:40:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 324 [2021-11-17 04:40:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 330 [2021-11-17 04:40:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-11-17 04:40:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2021-11-17 04:40:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-11-17 04:40:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 832 trivial. 0 not checked. [2021-11-17 04:40:27,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:40:27,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015673705] [2021-11-17 04:40:27,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015673705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:40:27,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:40:27,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 04:40:27,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754390039] [2021-11-17 04:40:27,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:40:27,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 04:40:27,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:40:27,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 04:40:27,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-17 04:40:27,701 INFO L87 Difference]: Start difference. First operand 13410 states and 17175 transitions. Second operand has 10 states, 10 states have (on average 13.9) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 04:40:29,735 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:32,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:34,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:35,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:40:40,847 INFO L93 Difference]: Finished difference Result 24957 states and 32588 transitions. [2021-11-17 04:40:40,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-17 04:40:40,848 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 377 [2021-11-17 04:40:40,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:40:40,883 INFO L225 Difference]: With dead ends: 24957 [2021-11-17 04:40:40,883 INFO L226 Difference]: Without dead ends: 11708 [2021-11-17 04:40:40,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-11-17 04:40:40,911 INFO L933 BasicCegarLoop]: 1702 mSDtfsCounter, 2315 mSDsluCounter, 5979 mSDsCounter, 0 mSdLazyCounter, 4589 mSolverCounterSat, 1895 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2358 SdHoareTripleChecker+Valid, 7681 SdHoareTripleChecker+Invalid, 6486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1895 IncrementalHoareTripleChecker+Valid, 4589 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-11-17 04:40:40,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2358 Valid, 7681 Invalid, 6486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1895 Valid, 4589 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2021-11-17 04:40:40,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11708 states. [2021-11-17 04:40:41,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11708 to 9260. [2021-11-17 04:40:41,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9260 states, 6409 states have (on average 1.2547979403963176) internal successors, (8042), 6527 states have internal predecessors, (8042), 1850 states have call successors, (1850), 1001 states have call predecessors, (1850), 1000 states have return successors, (1839), 1816 states have call predecessors, (1839), 1833 states have call successors, (1839) [2021-11-17 04:40:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9260 states to 9260 states and 11731 transitions. [2021-11-17 04:40:41,295 INFO L78 Accepts]: Start accepts. Automaton has 9260 states and 11731 transitions. Word has length 377 [2021-11-17 04:40:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:40:41,296 INFO L470 AbstractCegarLoop]: Abstraction has 9260 states and 11731 transitions. [2021-11-17 04:40:41,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.9) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (38), 7 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-11-17 04:40:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 9260 states and 11731 transitions. [2021-11-17 04:40:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2021-11-17 04:40:41,304 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:40:41,304 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:41,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-17 04:40:41,305 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:40:41,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:40:41,305 INFO L85 PathProgramCache]: Analyzing trace with hash 551521602, now seen corresponding path program 1 times [2021-11-17 04:40:41,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:40:41,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978225682] [2021-11-17 04:40:41,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:40:41,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:40:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:40:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:40:41,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:40:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:40:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:40:41,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:40:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:40:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:40:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:40:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:40:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:40:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:40:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:40:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:40:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:40:41,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:40:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:40:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:40:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:40:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 04:40:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 04:40:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 04:40:41,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 04:40:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 04:40:41,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 04:40:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 04:40:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-11-17 04:40:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-17 04:40:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 04:40:41,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 04:40:41,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 04:40:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:40:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 04:40:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:40:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 04:40:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 04:40:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 04:40:41,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 04:40:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 04:40:41,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-11-17 04:40:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:40:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 04:40:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 474 [2021-11-17 04:40:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:40:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2021-11-17 04:40:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 500 [2021-11-17 04:40:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2021-11-17 04:40:41,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 513 [2021-11-17 04:40:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:41,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2021-11-17 04:40:41,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:40:41,888 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978225682] [2021-11-17 04:40:41,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978225682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:40:41,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:40:41,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-17 04:40:41,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677104738] [2021-11-17 04:40:41,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:40:41,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-17 04:40:41,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:40:41,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-17 04:40:41,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-11-17 04:40:41,890 INFO L87 Difference]: Start difference. First operand 9260 states and 11731 transitions. Second operand has 10 states, 10 states have (on average 18.3) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-17 04:40:44,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:46,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:50,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:40:50,014 INFO L93 Difference]: Finished difference Result 18726 states and 23809 transitions. [2021-11-17 04:40:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 04:40:50,015 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 526 [2021-11-17 04:40:50,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:40:50,057 INFO L225 Difference]: With dead ends: 18726 [2021-11-17 04:40:50,057 INFO L226 Difference]: Without dead ends: 9627 [2021-11-17 04:40:50,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-11-17 04:40:50,075 INFO L933 BasicCegarLoop]: 1335 mSDtfsCounter, 1108 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 1322 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 6105 SdHoareTripleChecker+Invalid, 3556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1322 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-11-17 04:40:50,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1197 Valid, 6105 Invalid, 3556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1322 Valid, 2232 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2021-11-17 04:40:50,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9627 states. [2021-11-17 04:40:50,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9627 to 9278. [2021-11-17 04:40:50,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9278 states, 6427 states have (on average 1.2540843317255328) internal successors, (8060), 6545 states have internal predecessors, (8060), 1850 states have call successors, (1850), 1001 states have call predecessors, (1850), 1000 states have return successors, (1839), 1816 states have call predecessors, (1839), 1833 states have call successors, (1839) [2021-11-17 04:40:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9278 states to 9278 states and 11749 transitions. [2021-11-17 04:40:50,502 INFO L78 Accepts]: Start accepts. Automaton has 9278 states and 11749 transitions. Word has length 526 [2021-11-17 04:40:50,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:40:50,502 INFO L470 AbstractCegarLoop]: Abstraction has 9278 states and 11749 transitions. [2021-11-17 04:40:50,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.3) internal successors, (183), 5 states have internal predecessors, (183), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-17 04:40:50,502 INFO L276 IsEmpty]: Start isEmpty. Operand 9278 states and 11749 transitions. [2021-11-17 04:40:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2021-11-17 04:40:50,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:40:50,511 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:50,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-17 04:40:50,512 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:40:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:40:50,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1066509531, now seen corresponding path program 1 times [2021-11-17 04:40:50,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:40:50,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230036043] [2021-11-17 04:40:50,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:40:50,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:40:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:40:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:40:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:40:50,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:40:50,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:40:50,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:40:50,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:40:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:40:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:40:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:40:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:40:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:40:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:40:50,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:40:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:40:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:40:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:40:50,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:40:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:40:50,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 04:40:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 04:40:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 04:40:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 04:40:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 04:40:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 04:40:50,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 04:40:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 04:40:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-17 04:40:50,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 04:40:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 04:40:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 04:40:50,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 04:40:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:40:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:50,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:40:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 04:40:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 04:40:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 04:40:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-17 04:40:51,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 04:40:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 04:40:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 04:40:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 04:40:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2021-11-17 04:40:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:40:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-11-17 04:40:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2021-11-17 04:40:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2021-11-17 04:40:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2021-11-17 04:40:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1097 trivial. 0 not checked. [2021-11-17 04:40:51,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:40:51,054 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230036043] [2021-11-17 04:40:51,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230036043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:40:51,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 04:40:51,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-17 04:40:51,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906029935] [2021-11-17 04:40:51,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:40:51,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-17 04:40:51,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:40:51,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-17 04:40:51,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:40:51,057 INFO L87 Difference]: Start difference. First operand 9278 states and 11749 transitions. Second operand has 8 states, 8 states have (on average 23.125) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-17 04:40:53,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 04:40:58,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:40:58,114 INFO L93 Difference]: Finished difference Result 18666 states and 23695 transitions. [2021-11-17 04:40:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 04:40:58,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 528 [2021-11-17 04:40:58,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:40:58,140 INFO L225 Difference]: With dead ends: 18666 [2021-11-17 04:40:58,140 INFO L226 Difference]: Without dead ends: 9549 [2021-11-17 04:40:58,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 04:40:58,159 INFO L933 BasicCegarLoop]: 1328 mSDtfsCounter, 389 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 1913 mSolverCounterSat, 365 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 4453 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 1913 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-17 04:40:58,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [474 Valid, 4453 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 1913 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-17 04:40:58,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9549 states. [2021-11-17 04:40:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9549 to 9284. [2021-11-17 04:40:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9284 states, 6433 states have (on average 1.2538473496036064) internal successors, (8066), 6551 states have internal predecessors, (8066), 1850 states have call successors, (1850), 1001 states have call predecessors, (1850), 1000 states have return successors, (1839), 1816 states have call predecessors, (1839), 1833 states have call successors, (1839) [2021-11-17 04:40:58,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9284 states to 9284 states and 11755 transitions. [2021-11-17 04:40:58,596 INFO L78 Accepts]: Start accepts. Automaton has 9284 states and 11755 transitions. Word has length 528 [2021-11-17 04:40:58,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:40:58,597 INFO L470 AbstractCegarLoop]: Abstraction has 9284 states and 11755 transitions. [2021-11-17 04:40:58,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.125) internal successors, (185), 3 states have internal predecessors, (185), 2 states have call successors, (56), 7 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-17 04:40:58,598 INFO L276 IsEmpty]: Start isEmpty. Operand 9284 states and 11755 transitions. [2021-11-17 04:40:58,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2021-11-17 04:40:58,605 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:40:58,605 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:40:58,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-17 04:40:58,606 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:40:58,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:40:58,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1064841191, now seen corresponding path program 1 times [2021-11-17 04:40:58,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:40:58,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411508776] [2021-11-17 04:40:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:40:58,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:40:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:40:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:40:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:40:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:40:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:40:58,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:40:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:40:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:40:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:58,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:40:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:40:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:40:59,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:40:59,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:40:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:40:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:40:59,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:40:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:40:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:59,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:40:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:59,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:40:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:40:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 04:40:59,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-17 04:40:59,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-17 04:40:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-17 04:40:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-17 04:40:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 04:40:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-11-17 04:40:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 04:40:59,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-11-17 04:40:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-11-17 04:40:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 04:40:59,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-11-17 04:40:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 04:40:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 04:40:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:40:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-11-17 04:40:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 04:40:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 04:40:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-11-17 04:40:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 04:40:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-17 04:40:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 04:40:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 04:40:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2021-11-17 04:40:59,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:40:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:40:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-11-17 04:40:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 502 [2021-11-17 04:40:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 509 [2021-11-17 04:40:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 515 [2021-11-17 04:40:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:40:59,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 10 proven. 36 refuted. 0 times theorem prover too weak. 1061 trivial. 0 not checked. [2021-11-17 04:40:59,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:40:59,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411508776] [2021-11-17 04:40:59,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411508776] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 04:40:59,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046500204] [2021-11-17 04:40:59,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:40:59,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 04:40:59,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:40:59,481 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 04:40:59,482 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 04:41:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:01,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 4165 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-17 04:41:02,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 04:41:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2021-11-17 04:41:02,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 04:41:02,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046500204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:41:02,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 04:41:02,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 14 [2021-11-17 04:41:02,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854921190] [2021-11-17 04:41:02,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:41:02,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 04:41:02,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:41:02,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 04:41:02,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-17 04:41:02,850 INFO L87 Difference]: Start difference. First operand 9284 states and 11755 transitions. Second operand has 9 states, 9 states have (on average 21.333333333333332) internal successors, (192), 7 states have internal predecessors, (192), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-17 04:41:03,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:41:03,525 INFO L93 Difference]: Finished difference Result 18527 states and 23481 transitions. [2021-11-17 04:41:03,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 04:41:03,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 21.333333333333332) internal successors, (192), 7 states have internal predecessors, (192), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) Word has length 528 [2021-11-17 04:41:03,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:41:03,549 INFO L225 Difference]: With dead ends: 18527 [2021-11-17 04:41:03,549 INFO L226 Difference]: Without dead ends: 9404 [2021-11-17 04:41:03,564 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 698 GetRequests, 682 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2021-11-17 04:41:03,565 INFO L933 BasicCegarLoop]: 1443 mSDtfsCounter, 9 mSDsluCounter, 10072 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 11515 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-17 04:41:03,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 11515 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-17 04:41:03,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9404 states. [2021-11-17 04:41:03,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9404 to 9338. [2021-11-17 04:41:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9338 states, 6475 states have (on average 1.2522007722007722) internal successors, (8108), 6593 states have internal predecessors, (8108), 1850 states have call successors, (1850), 1001 states have call predecessors, (1850), 1012 states have return successors, (1891), 1828 states have call predecessors, (1891), 1833 states have call successors, (1891) [2021-11-17 04:41:03,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9338 states to 9338 states and 11849 transitions. [2021-11-17 04:41:03,916 INFO L78 Accepts]: Start accepts. Automaton has 9338 states and 11849 transitions. Word has length 528 [2021-11-17 04:41:03,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:41:03,916 INFO L470 AbstractCegarLoop]: Abstraction has 9338 states and 11849 transitions. [2021-11-17 04:41:03,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 21.333333333333332) internal successors, (192), 7 states have internal predecessors, (192), 2 states have call successors, (57), 2 states have call predecessors, (57), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-17 04:41:03,916 INFO L276 IsEmpty]: Start isEmpty. Operand 9338 states and 11849 transitions. [2021-11-17 04:41:03,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2021-11-17 04:41:03,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:41:03,925 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:41:03,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-17 04:41:04,151 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,SelfDestructingSolverStorable26 [2021-11-17 04:41:04,153 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:41:04,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:41:04,153 INFO L85 PathProgramCache]: Analyzing trace with hash -94896335, now seen corresponding path program 1 times [2021-11-17 04:41:04,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:41:04,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003047993] [2021-11-17 04:41:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:41:04,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:41:04,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:41:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:41:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:41:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:41:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:41:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:41:04,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:41:04,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:41:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:41:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:41:04,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:41:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:41:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:41:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:41:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:41:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:41:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:41:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:41:04,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 04:41:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:41:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 04:41:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 04:41:04,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 04:41:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 04:41:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 04:41:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 04:41:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 04:41:04,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:41:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 04:41:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:41:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 04:41:04,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:04,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 04:41:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:04,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-17 04:41:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-17 04:41:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 04:41:04,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-11-17 04:41:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-17 04:41:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 04:41:04,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 04:41:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-11-17 04:41:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-11-17 04:41:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 512 [2021-11-17 04:41:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:41:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 530 [2021-11-17 04:41:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2021-11-17 04:41:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 545 [2021-11-17 04:41:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 551 [2021-11-17 04:41:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:04,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2021-11-17 04:41:04,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:41:04,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003047993] [2021-11-17 04:41:04,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003047993] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 04:41:04,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83361136] [2021-11-17 04:41:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:41:04,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 04:41:04,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:41:04,896 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 04:41:04,915 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 04:41:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:08,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 4297 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-17 04:41:08,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 04:41:09,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1437 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 1098 trivial. 0 not checked. [2021-11-17 04:41:09,519 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 04:41:09,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83361136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 04:41:09,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 04:41:09,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 14 [2021-11-17 04:41:09,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211858427] [2021-11-17 04:41:09,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 04:41:09,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 04:41:09,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 04:41:09,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 04:41:09,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-17 04:41:09,521 INFO L87 Difference]: Start difference. First operand 9338 states and 11849 transitions. Second operand has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 5 states have internal predecessors, (206), 2 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (59), 4 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-17 04:41:09,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 04:41:09,888 INFO L93 Difference]: Finished difference Result 18561 states and 23567 transitions. [2021-11-17 04:41:09,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 04:41:09,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 5 states have internal predecessors, (206), 2 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (59), 4 states have call predecessors, (59), 2 states have call successors, (59) Word has length 564 [2021-11-17 04:41:09,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 04:41:09,912 INFO L225 Difference]: With dead ends: 18561 [2021-11-17 04:41:09,913 INFO L226 Difference]: Without dead ends: 9384 [2021-11-17 04:41:09,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 728 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-17 04:41:09,931 INFO L933 BasicCegarLoop]: 1445 mSDtfsCounter, 0 mSDsluCounter, 7218 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8663 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 04:41:09,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8663 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 04:41:09,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9384 states. [2021-11-17 04:41:10,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9384 to 9368. [2021-11-17 04:41:10,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9368 states, 6499 states have (on average 1.2512694260655486) internal successors, (8132), 6611 states have internal predecessors, (8132), 1850 states have call successors, (1850), 1001 states have call predecessors, (1850), 1018 states have return successors, (1909), 1840 states have call predecessors, (1909), 1833 states have call successors, (1909) [2021-11-17 04:41:10,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9368 states to 9368 states and 11891 transitions. [2021-11-17 04:41:10,285 INFO L78 Accepts]: Start accepts. Automaton has 9368 states and 11891 transitions. Word has length 564 [2021-11-17 04:41:10,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 04:41:10,285 INFO L470 AbstractCegarLoop]: Abstraction has 9368 states and 11891 transitions. [2021-11-17 04:41:10,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 29.428571428571427) internal successors, (206), 5 states have internal predecessors, (206), 2 states have call successors, (60), 2 states have call predecessors, (60), 4 states have return successors, (59), 4 states have call predecessors, (59), 2 states have call successors, (59) [2021-11-17 04:41:10,286 INFO L276 IsEmpty]: Start isEmpty. Operand 9368 states and 11891 transitions. [2021-11-17 04:41:10,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2021-11-17 04:41:10,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 04:41:10,294 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 6, 6, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:41:10,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 04:41:10,507 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,SelfDestructingSolverStorable27 [2021-11-17 04:41:10,507 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 04:41:10,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 04:41:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1730857673, now seen corresponding path program 2 times [2021-11-17 04:41:10,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 04:41:10,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372648892] [2021-11-17 04:41:10,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 04:41:10,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 04:41:10,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 04:41:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 04:41:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 04:41:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-17 04:41:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 04:41:10,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 04:41:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-17 04:41:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 04:41:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 04:41:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 04:41:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 04:41:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-17 04:41:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 04:41:10,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 04:41:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-17 04:41:10,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 04:41:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 04:41:10,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-11-17 04:41:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:10,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 04:41:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:10,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 04:41:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-17 04:41:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 04:41:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-17 04:41:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 04:41:11,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-17 04:41:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-17 04:41:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 04:41:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-11-17 04:41:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 04:41:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 04:41:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:11,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 04:41:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 04:41:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:11,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 04:41:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 04:41:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 04:41:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 04:41:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 04:41:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-11-17 04:41:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2021-11-17 04:41:11,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 04:41:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-11-17 04:41:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 04:41:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 04:41:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2021-11-17 04:41:11,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 04:41:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 04:41:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 542 [2021-11-17 04:41:11,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2021-11-17 04:41:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2021-11-17 04:41:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 563 [2021-11-17 04:41:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 04:41:11,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1595 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1563 trivial. 0 not checked. [2021-11-17 04:41:11,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 04:41:11,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372648892] [2021-11-17 04:41:11,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372648892] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 04:41:11,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577542321] [2021-11-17 04:41:11,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 04:41:11,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 04:41:11,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 04:41:11,368 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 04:41:11,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process Killed by 15