./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.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 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 10:55:29,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 10:55:29,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 10:55:29,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 10:55:29,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 10:55:29,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 10:55:29,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 10:55:29,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 10:55:29,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 10:55:29,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 10:55:29,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 10:55:29,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 10:55:29,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 10:55:29,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 10:55:29,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 10:55:29,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 10:55:29,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 10:55:29,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 10:55:29,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 10:55:29,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 10:55:29,293 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 10:55:29,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 10:55:29,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 10:55:29,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 10:55:29,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 10:55:29,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 10:55:29,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 10:55:29,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 10:55:29,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 10:55:29,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 10:55:29,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 10:55:29,304 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 10:55:29,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 10:55:29,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 10:55:29,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 10:55:29,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 10:55:29,309 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 10:55:29,310 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 10:55:29,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 10:55:29,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 10:55:29,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 10:55:29,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 10:55:29,321 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 10:55:29,357 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 10:55:29,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 10:55:29,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 10:55:29,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 10:55:29,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 10:55:29,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 10:55:29,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 10:55:29,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 10:55:29,360 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 10:55:29,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 10:55:29,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 10:55:29,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 10:55:29,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 10:55:29,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 10:55:29,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 10:55:29,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 10:55:29,373 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 10:55:29,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 10:55:29,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 10:55:29,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 10:55:29,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 10:55:29,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:55:29,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 10:55:29,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 10:55:29,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 10:55:29,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 10:55:29,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 10:55:29,375 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 10:55:29,375 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 10:55:29,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 10:55:29,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c [2022-07-21 10:55:29,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 10:55:29,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 10:55:29,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 10:55:29,724 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 10:55:29,725 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 10:55:29,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-07-21 10:55:29,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92934b652/92a9dc4604cb4b2c8625b9eee629b827/FLAG0ed5e1387 [2022-07-21 10:55:30,538 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 10:55:30,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-07-21 10:55:30,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92934b652/92a9dc4604cb4b2c8625b9eee629b827/FLAG0ed5e1387 [2022-07-21 10:55:30,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92934b652/92a9dc4604cb4b2c8625b9eee629b827 [2022-07-21 10:55:30,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 10:55:30,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 10:55:30,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 10:55:30,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 10:55:30,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 10:55:30,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:30" (1/1) ... [2022-07-21 10:55:30,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd934e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:30, skipping insertion in model container [2022-07-21 10:55:30,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:55:30" (1/1) ... [2022-07-21 10:55:30,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 10:55:30,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 10:55:31,984 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2022-07-21 10:55:32,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:55:32,848 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 10:55:32,960 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2022-07-21 10:55:33,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 10:55:33,293 INFO L208 MainTranslator]: Completed translation [2022-07-21 10:55:33,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33 WrapperNode [2022-07-21 10:55:33,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 10:55:33,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 10:55:33,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 10:55:33,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 10:55:33,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:33,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:35,140 INFO L137 Inliner]: procedures = 229, calls = 2530, calls flagged for inlining = 102, calls inlined = 99, statements flattened = 5007 [2022-07-21 10:55:35,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 10:55:35,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 10:55:35,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 10:55:35,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 10:55:35,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:35,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:35,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:35,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:36,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:36,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:36,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:37,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 10:55:37,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 10:55:37,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 10:55:37,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 10:55:37,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (1/1) ... [2022-07-21 10:55:37,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 10:55:37,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 10:55:37,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 10:55:37,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 10:55:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 10:55:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 10:55:37,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-07-21 10:55:37,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-07-21 10:55:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-21 10:55:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 10:55:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 10:55:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 10:55:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 10:55:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-21 10:55:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-21 10:55:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_rel [2022-07-21 10:55:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_rel [2022-07-21 10:55:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_26 [2022-07-21 10:55:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_26 [2022-07-21 10:55:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-21 10:55:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-21 10:55:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-07-21 10:55:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-07-21 10:55:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 10:55:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 10:55:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-21 10:55:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-21 10:55:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2022-07-21 10:55:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2022-07-21 10:55:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-07-21 10:55:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-07-21 10:55:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 10:55:37,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 10:55:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 10:55:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 10:55:37,142 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2022-07-21 10:55:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2022-07-21 10:55:37,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2022-07-21 10:55:37,142 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2022-07-21 10:55:37,142 INFO L130 BoogieDeclarations]: Found specification of procedure rc_g_keycode_from_table [2022-07-21 10:55:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_g_keycode_from_table [2022-07-21 10:55:37,143 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 10:55:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 10:55:37,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-21 10:55:37,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-21 10:55:37,143 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 10:55:37,144 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 10:55:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 10:55:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-07-21 10:55:37,144 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-07-21 10:55:37,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2022-07-21 10:55:37,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2022-07-21 10:55:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 10:55:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-07-21 10:55:37,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-07-21 10:55:37,145 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2022-07-21 10:55:37,145 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2022-07-21 10:55:37,146 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 10:55:37,146 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 10:55:37,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2022-07-21 10:55:37,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2022-07-21 10:55:37,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 10:55:37,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 10:55:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-07-21 10:55:37,148 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-07-21 10:55:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-21 10:55:37,149 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-21 10:55:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 10:55:37,149 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 10:55:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-21 10:55:37,149 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-21 10:55:37,149 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 10:55:37,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 10:55:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2022-07-21 10:55:37,150 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2022-07-21 10:55:37,150 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf1 [2022-07-21 10:55:37,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf1 [2022-07-21 10:55:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf0 [2022-07-21 10:55:37,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf0 [2022-07-21 10:55:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-07-21 10:55:37,151 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-07-21 10:55:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 10:55:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-21 10:55:37,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-21 10:55:37,151 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-21 10:55:37,152 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-21 10:55:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-07-21 10:55:37,152 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-07-21 10:55:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-21 10:55:37,152 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-21 10:55:37,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 10:55:37,153 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2022-07-21 10:55:37,153 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2022-07-21 10:55:37,153 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-07-21 10:55:37,153 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-07-21 10:55:37,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 10:55:37,154 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-21 10:55:37,154 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-21 10:55:37,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_7 [2022-07-21 10:55:37,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_7 [2022-07-21 10:55:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 10:55:37,155 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 10:55:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2022-07-21 10:55:37,156 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2022-07-21 10:55:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 10:55:37,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 10:55:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-21 10:55:37,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-21 10:55:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 10:55:37,157 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 10:55:37,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 10:55:37,157 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2022-07-21 10:55:37,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2022-07-21 10:55:37,157 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-07-21 10:55:37,157 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-07-21 10:55:37,157 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2022-07-21 10:55:37,158 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2022-07-21 10:55:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2022-07-21 10:55:37,158 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2022-07-21 10:55:37,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 10:55:37,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 10:55:37,159 INFO L130 BoogieDeclarations]: Found specification of procedure imon_remote_key_lookup [2022-07-21 10:55:37,159 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_remote_key_lookup [2022-07-21 10:55:37,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 10:55:37,162 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-07-21 10:55:37,162 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-07-21 10:55:37,162 INFO L130 BoogieDeclarations]: Found specification of procedure tv2int [2022-07-21 10:55:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tv2int [2022-07-21 10:55:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure stabilize [2022-07-21 10:55:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure stabilize [2022-07-21 10:55:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2022-07-21 10:55:37,164 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2022-07-21 10:55:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_6 [2022-07-21 10:55:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_6 [2022-07-21 10:55:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 10:55:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 10:55:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 10:55:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2022-07-21 10:55:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2022-07-21 10:55:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 10:55:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 10:55:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 10:55:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-07-21 10:55:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-07-21 10:55:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 10:55:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-07-21 10:55:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-07-21 10:55:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2022-07-21 10:55:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2022-07-21 10:55:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:55:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 10:55:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-07-21 10:55:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-07-21 10:55:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2022-07-21 10:55:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2022-07-21 10:55:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-07-21 10:55:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-07-21 10:55:37,173 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2022-07-21 10:55:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2022-07-21 10:55:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2022-07-21 10:55:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2022-07-21 10:55:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-21 10:55:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-21 10:55:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 10:55:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-21 10:55:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-21 10:55:37,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 10:55:37,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 10:55:37,815 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 10:55:37,817 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 10:55:45,352 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 10:56:09,155 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-21 10:56:11,712 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 10:56:11,726 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 10:56:11,726 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 10:56:11,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:56:11 BoogieIcfgContainer [2022-07-21 10:56:11,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 10:56:11,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 10:56:11,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 10:56:11,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 10:56:11,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:55:30" (1/3) ... [2022-07-21 10:56:11,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e464748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:56:11, skipping insertion in model container [2022-07-21 10:56:11,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:55:33" (2/3) ... [2022-07-21 10:56:11,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e464748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:56:11, skipping insertion in model container [2022-07-21 10:56:11,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:56:11" (3/3) ... [2022-07-21 10:56:11,737 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-07-21 10:56:11,749 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 10:56:11,750 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 10:56:11,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 10:56:11,861 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@61623ef9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3c6020fa [2022-07-21 10:56:11,861 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 10:56:11,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 1557 states, 1165 states have (on average 1.4180257510729615) internal successors, (1652), 1196 states have internal predecessors, (1652), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) [2022-07-21 10:56:11,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 10:56:11,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:11,894 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:11,895 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:11,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1302166196, now seen corresponding path program 1 times [2022-07-21 10:56:11,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:11,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813520138] [2022-07-21 10:56:11,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:11,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:12,816 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-21 10:56:12,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:12,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813520138] [2022-07-21 10:56:12,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813520138] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:12,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:12,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:56:12,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515558956] [2022-07-21 10:56:12,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:12,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:56:12,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:12,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:56:12,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:56:12,865 INFO L87 Difference]: Start difference. First operand has 1557 states, 1165 states have (on average 1.4180257510729615) internal successors, (1652), 1196 states have internal predecessors, (1652), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-21 10:56:15,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:17,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:19,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:25,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:27,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:30,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:30,125 INFO L93 Difference]: Finished difference Result 4719 states and 7110 transitions. [2022-07-21 10:56:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:56:30,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2022-07-21 10:56:30,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:30,163 INFO L225 Difference]: With dead ends: 4719 [2022-07-21 10:56:30,163 INFO L226 Difference]: Without dead ends: 3137 [2022-07-21 10:56:30,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:30,181 INFO L413 NwaCegarLoop]: 2462 mSDtfsCounter, 2441 mSDsluCounter, 2867 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 739 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2683 SdHoareTripleChecker+Valid, 5329 SdHoareTripleChecker+Invalid, 2185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:30,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2683 Valid, 5329 Invalid, 2185 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [739 Valid, 1444 Invalid, 2 Unknown, 0 Unchecked, 16.9s Time] [2022-07-21 10:56:30,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3137 states. [2022-07-21 10:56:30,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3137 to 3013. [2022-07-21 10:56:30,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 2275 states have (on average 1.3806593406593406) internal successors, (3141), 2311 states have internal predecessors, (3141), 597 states have call successors, (597), 141 states have call predecessors, (597), 140 states have return successors, (592), 582 states have call predecessors, (592), 592 states have call successors, (592) [2022-07-21 10:56:30,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 4330 transitions. [2022-07-21 10:56:30,422 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 4330 transitions. Word has length 74 [2022-07-21 10:56:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:30,425 INFO L495 AbstractCegarLoop]: Abstraction has 3013 states and 4330 transitions. [2022-07-21 10:56:30,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2022-07-21 10:56:30,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 4330 transitions. [2022-07-21 10:56:30,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-07-21 10:56:30,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:30,434 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:30,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 10:56:30,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:30,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:30,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1094154582, now seen corresponding path program 1 times [2022-07-21 10:56:30,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:30,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785341661] [2022-07-21 10:56:30,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:30,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:56:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:30,837 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 10:56:30,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:30,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785341661] [2022-07-21 10:56:30,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785341661] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:30,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:30,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:56:30,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952392076] [2022-07-21 10:56:30,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:30,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:56:30,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:30,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:56:30,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:56:30,841 INFO L87 Difference]: Start difference. First operand 3013 states and 4330 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:56:33,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:35,936 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:37,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:38,926 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:41,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:46,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:48,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:53,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:54,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:56:54,645 INFO L93 Difference]: Finished difference Result 9240 states and 13580 transitions. [2022-07-21 10:56:54,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:56:54,645 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2022-07-21 10:56:54,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:56:54,689 INFO L225 Difference]: With dead ends: 9240 [2022-07-21 10:56:54,689 INFO L226 Difference]: Without dead ends: 6250 [2022-07-21 10:56:54,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:56:54,709 INFO L413 NwaCegarLoop]: 2652 mSDtfsCounter, 2468 mSDsluCounter, 2931 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 715 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2699 SdHoareTripleChecker+Valid, 5583 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 715 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:56:54,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2699 Valid, 5583 Invalid, 2212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [715 Valid, 1494 Invalid, 3 Unknown, 0 Unchecked, 23.5s Time] [2022-07-21 10:56:54,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6250 states. [2022-07-21 10:56:54,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6250 to 6044. [2022-07-21 10:56:54,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 4565 states have (on average 1.378313253012048) internal successors, (6292), 4635 states have internal predecessors, (6292), 1186 states have call successors, (1186), 281 states have call predecessors, (1186), 292 states have return successors, (1283), 1169 states have call predecessors, (1283), 1181 states have call successors, (1283) [2022-07-21 10:56:54,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8761 transitions. [2022-07-21 10:56:54,929 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8761 transitions. Word has length 83 [2022-07-21 10:56:54,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:56:54,931 INFO L495 AbstractCegarLoop]: Abstraction has 6044 states and 8761 transitions. [2022-07-21 10:56:54,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:56:54,932 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8761 transitions. [2022-07-21 10:56:54,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 10:56:54,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:56:54,935 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:56:54,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 10:56:54,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:56:54,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:56:54,936 INFO L85 PathProgramCache]: Analyzing trace with hash 440359394, now seen corresponding path program 1 times [2022-07-21 10:56:54,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:56:54,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677835443] [2022-07-21 10:56:54,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:56:54,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:56:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:56:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:56:55,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:56:55,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:56:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:56:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:56:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:56:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:56:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:56:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:56:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:56:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 10:56:55,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:56:55,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677835443] [2022-07-21 10:56:55,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677835443] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:56:55,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:56:55,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:56:55,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916462961] [2022-07-21 10:56:55,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:56:55,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:56:55,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:56:55,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:56:55,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:56:55,328 INFO L87 Difference]: Start difference. First operand 6044 states and 8761 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:56:56,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:56:58,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:00,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:03,005 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:05,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:12,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:14,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:16,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:16,951 INFO L93 Difference]: Finished difference Result 18473 states and 26981 transitions. [2022-07-21 10:57:16,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:57:16,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 84 [2022-07-21 10:57:16,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:17,027 INFO L225 Difference]: With dead ends: 18473 [2022-07-21 10:57:17,028 INFO L226 Difference]: Without dead ends: 12452 [2022-07-21 10:57:17,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:57:17,060 INFO L413 NwaCegarLoop]: 2918 mSDtfsCounter, 2416 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 641 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2661 SdHoareTripleChecker+Valid, 6007 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 641 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:17,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2661 Valid, 6007 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [641 Valid, 1533 Invalid, 3 Unknown, 0 Unchecked, 21.2s Time] [2022-07-21 10:57:17,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12452 states. [2022-07-21 10:57:17,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12452 to 12051. [2022-07-21 10:57:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12051 states, 9108 states have (on average 1.3779095300834432) internal successors, (12550), 9244 states have internal predecessors, (12550), 2358 states have call successors, (2358), 561 states have call predecessors, (2358), 584 states have return successors, (2569), 2329 states have call predecessors, (2569), 2353 states have call successors, (2569) [2022-07-21 10:57:17,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12051 states to 12051 states and 17477 transitions. [2022-07-21 10:57:17,585 INFO L78 Accepts]: Start accepts. Automaton has 12051 states and 17477 transitions. Word has length 84 [2022-07-21 10:57:17,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:17,587 INFO L495 AbstractCegarLoop]: Abstraction has 12051 states and 17477 transitions. [2022-07-21 10:57:17,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:57:17,588 INFO L276 IsEmpty]: Start isEmpty. Operand 12051 states and 17477 transitions. [2022-07-21 10:57:17,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-21 10:57:17,591 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:17,591 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:17,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 10:57:17,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:17,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:17,592 INFO L85 PathProgramCache]: Analyzing trace with hash 765657261, now seen corresponding path program 1 times [2022-07-21 10:57:17,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:17,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308127337] [2022-07-21 10:57:17,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:17,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:17,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:57:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:57:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:17,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:17,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:57:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:57:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:57:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 10:57:17,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:17,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308127337] [2022-07-21 10:57:17,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308127337] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:17,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:57:17,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:57:17,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203857394] [2022-07-21 10:57:17,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:17,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:57:17,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:17,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:57:17,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:57:17,911 INFO L87 Difference]: Start difference. First operand 12051 states and 17477 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:57:19,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:21,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:25,789 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:29,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:31,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:35,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:37,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:37,060 INFO L93 Difference]: Finished difference Result 12450 states and 18232 transitions. [2022-07-21 10:57:37,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 10:57:37,061 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 85 [2022-07-21 10:57:37,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:37,133 INFO L225 Difference]: With dead ends: 12450 [2022-07-21 10:57:37,134 INFO L226 Difference]: Without dead ends: 12447 [2022-07-21 10:57:37,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:57:37,147 INFO L413 NwaCegarLoop]: 2919 mSDtfsCounter, 2411 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 639 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 6003 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:37,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2658 Valid, 6003 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 1529 Invalid, 3 Unknown, 0 Unchecked, 18.9s Time] [2022-07-21 10:57:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12447 states. [2022-07-21 10:57:37,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12447 to 12052. [2022-07-21 10:57:37,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12052 states, 9109 states have (on average 1.3778680425952354) internal successors, (12551), 9245 states have internal predecessors, (12551), 2358 states have call successors, (2358), 561 states have call predecessors, (2358), 584 states have return successors, (2569), 2329 states have call predecessors, (2569), 2353 states have call successors, (2569) [2022-07-21 10:57:37,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12052 states to 12052 states and 17478 transitions. [2022-07-21 10:57:37,596 INFO L78 Accepts]: Start accepts. Automaton has 12052 states and 17478 transitions. Word has length 85 [2022-07-21 10:57:37,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:37,596 INFO L495 AbstractCegarLoop]: Abstraction has 12052 states and 17478 transitions. [2022-07-21 10:57:37,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:57:37,597 INFO L276 IsEmpty]: Start isEmpty. Operand 12052 states and 17478 transitions. [2022-07-21 10:57:37,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 10:57:37,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:37,602 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:37,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 10:57:37,602 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:37,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:37,603 INFO L85 PathProgramCache]: Analyzing trace with hash -2035005883, now seen corresponding path program 1 times [2022-07-21 10:57:37,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:37,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495558967] [2022-07-21 10:57:37,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:37,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:37,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:57:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:57:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:57:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:57:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:57:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:37,950 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 10:57:37,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:37,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495558967] [2022-07-21 10:57:37,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495558967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:37,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:57:37,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:57:37,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120873804] [2022-07-21 10:57:37,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:37,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:57:37,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:37,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:57:37,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:57:37,953 INFO L87 Difference]: Start difference. First operand 12052 states and 17478 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:57:40,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:42,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:44,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:46,243 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:51,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:53,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:54,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:57:54,690 INFO L93 Difference]: Finished difference Result 12446 states and 18228 transitions. [2022-07-21 10:57:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:57:54,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 86 [2022-07-21 10:57:54,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:57:54,747 INFO L225 Difference]: With dead ends: 12446 [2022-07-21 10:57:54,747 INFO L226 Difference]: Without dead ends: 12443 [2022-07-21 10:57:54,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:57:54,757 INFO L413 NwaCegarLoop]: 2162 mSDtfsCounter, 2214 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 408 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-07-21 10:57:54,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2449 Valid, 3226 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 679 Invalid, 2 Unknown, 0 Unchecked, 16.5s Time] [2022-07-21 10:57:54,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12443 states. [2022-07-21 10:57:55,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12443 to 12051. [2022-07-21 10:57:55,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12051 states, 9109 states have (on average 1.3777582610604897) internal successors, (12550), 9244 states have internal predecessors, (12550), 2357 states have call successors, (2357), 561 states have call predecessors, (2357), 584 states have return successors, (2569), 2329 states have call predecessors, (2569), 2353 states have call successors, (2569) [2022-07-21 10:57:55,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12051 states to 12051 states and 17476 transitions. [2022-07-21 10:57:55,274 INFO L78 Accepts]: Start accepts. Automaton has 12051 states and 17476 transitions. Word has length 86 [2022-07-21 10:57:55,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:57:55,274 INFO L495 AbstractCegarLoop]: Abstraction has 12051 states and 17476 transitions. [2022-07-21 10:57:55,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:57:55,275 INFO L276 IsEmpty]: Start isEmpty. Operand 12051 states and 17476 transitions. [2022-07-21 10:57:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-21 10:57:55,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:57:55,277 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:57:55,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 10:57:55,278 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:57:55,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:57:55,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1338754736, now seen corresponding path program 1 times [2022-07-21 10:57:55,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:57:55,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327140527] [2022-07-21 10:57:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:57:55,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:57:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:57:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:57:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:57:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:57:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:57:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:57:55,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:57:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:57:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:57:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:57:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:57:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-21 10:57:55,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:57:55,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327140527] [2022-07-21 10:57:55,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327140527] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:57:55,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:57:55,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 10:57:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548002054] [2022-07-21 10:57:55,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:57:55,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 10:57:55,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:57:55,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 10:57:55,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 10:57:55,548 INFO L87 Difference]: Start difference. First operand 12051 states and 17476 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:57:57,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:57:58,878 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:01,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:07,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:08,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:10,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:11,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:58:11,329 INFO L93 Difference]: Finished difference Result 12445 states and 18226 transitions. [2022-07-21 10:58:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 10:58:11,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 87 [2022-07-21 10:58:11,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:58:11,527 INFO L225 Difference]: With dead ends: 12445 [2022-07-21 10:58:11,527 INFO L226 Difference]: Without dead ends: 12433 [2022-07-21 10:58:11,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 10:58:11,535 INFO L413 NwaCegarLoop]: 2159 mSDtfsCounter, 2212 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 407 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 407 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2022-07-21 10:58:11,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 3222 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [407 Valid, 677 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2022-07-21 10:58:11,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12433 states. [2022-07-21 10:58:11,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12433 to 12041. [2022-07-21 10:58:11,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12041 states, 9100 states have (on average 1.3776923076923078) internal successors, (12537), 9234 states have internal predecessors, (12537), 2356 states have call successors, (2356), 561 states have call predecessors, (2356), 584 states have return successors, (2569), 2329 states have call predecessors, (2569), 2353 states have call successors, (2569) [2022-07-21 10:58:11,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12041 states to 12041 states and 17462 transitions. [2022-07-21 10:58:11,901 INFO L78 Accepts]: Start accepts. Automaton has 12041 states and 17462 transitions. Word has length 87 [2022-07-21 10:58:11,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:58:11,902 INFO L495 AbstractCegarLoop]: Abstraction has 12041 states and 17462 transitions. [2022-07-21 10:58:11,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-21 10:58:11,902 INFO L276 IsEmpty]: Start isEmpty. Operand 12041 states and 17462 transitions. [2022-07-21 10:58:11,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-07-21 10:58:11,910 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:58:11,910 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-07-21 10:58:11,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 10:58:11,911 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:58:11,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:58:11,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1696861401, now seen corresponding path program 1 times [2022-07-21 10:58:11,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:58:11,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069636922] [2022-07-21 10:58:11,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:58:11,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:58:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:58:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:58:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:58:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:58:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:58:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:58:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:58:12,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:58:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-21 10:58:12,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:58:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 10:58:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:58:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-21 10:58:12,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 10:58:12,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 10:58:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 10:58:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 10:58:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 10:58:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:58:12,241 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-07-21 10:58:12,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:58:12,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069636922] [2022-07-21 10:58:12,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069636922] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:58:12,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:58:12,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 10:58:12,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024631543] [2022-07-21 10:58:12,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:58:12,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:58:12,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:58:12,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:58:12,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:58:12,244 INFO L87 Difference]: Start difference. First operand 12041 states and 17462 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 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) [2022-07-21 10:58:15,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:18,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:21,481 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:24,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:26,088 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:27,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:29,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:32,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:36,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:38,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:42,296 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:44,382 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:48,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:50,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:53,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:58:58,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:01,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:05,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:07,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:09,421 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:11,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:12,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 10:59:12,980 INFO L93 Difference]: Finished difference Result 33508 states and 48877 transitions. [2022-07-21 10:59:12,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 10:59:12,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 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 151 [2022-07-21 10:59:12,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 10:59:13,082 INFO L225 Difference]: With dead ends: 33508 [2022-07-21 10:59:13,083 INFO L226 Difference]: Without dead ends: 21490 [2022-07-21 10:59:13,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-07-21 10:59:13,142 INFO L413 NwaCegarLoop]: 2149 mSDtfsCounter, 3623 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 4837 mSolverCounterSat, 1718 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 4526 SdHoareTripleChecker+Invalid, 6569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1718 IncrementalHoareTripleChecker+Valid, 4837 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.1s IncrementalHoareTripleChecker+Time [2022-07-21 10:59:13,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3835 Valid, 4526 Invalid, 6569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1718 Valid, 4837 Invalid, 14 Unknown, 0 Unchecked, 60.1s Time] [2022-07-21 10:59:13,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21490 states. [2022-07-21 10:59:13,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21490 to 20512. [2022-07-21 10:59:13,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20512 states, 15553 states have (on average 1.3858419597505305) internal successors, (21554), 15791 states have internal predecessors, (21554), 3913 states have call successors, (3913), 994 states have call predecessors, (3913), 1045 states have return successors, (4274), 3862 states have call predecessors, (4274), 3910 states have call successors, (4274) [2022-07-21 10:59:13,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20512 states to 20512 states and 29741 transitions. [2022-07-21 10:59:13,872 INFO L78 Accepts]: Start accepts. Automaton has 20512 states and 29741 transitions. Word has length 151 [2022-07-21 10:59:13,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 10:59:13,873 INFO L495 AbstractCegarLoop]: Abstraction has 20512 states and 29741 transitions. [2022-07-21 10:59:13,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 3 states have internal predecessors, (82), 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) [2022-07-21 10:59:13,873 INFO L276 IsEmpty]: Start isEmpty. Operand 20512 states and 29741 transitions. [2022-07-21 10:59:13,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-07-21 10:59:13,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 10:59:13,895 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 10:59:13,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 10:59:13,896 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 10:59:13,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 10:59:13,897 INFO L85 PathProgramCache]: Analyzing trace with hash -613904597, now seen corresponding path program 1 times [2022-07-21 10:59:13,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 10:59:13,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466385323] [2022-07-21 10:59:13,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 10:59:13,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 10:59:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:59:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 10:59:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 10:59:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 10:59:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 10:59:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 10:59:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 10:59:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 10:59:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 10:59:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-21 10:59:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-21 10:59:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 10:59:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 10:59:14,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 10:59:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 10:59:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 10:59:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 10:59:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 10:59:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-21 10:59:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 10:59:14,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 10:59:14,188 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-07-21 10:59:14,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 10:59:14,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466385323] [2022-07-21 10:59:14,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466385323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 10:59:14,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 10:59:14,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 10:59:14,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371573945] [2022-07-21 10:59:14,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 10:59:14,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 10:59:14,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 10:59:14,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 10:59:14,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-21 10:59:14,190 INFO L87 Difference]: Start difference. First operand 20512 states and 29741 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-21 10:59:17,272 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:20,231 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:22,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:25,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:28,075 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:32,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:35,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:38,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 10:59:40,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []