./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--gdm724x--gdmulte.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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--gdm724x--gdmulte.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 a45fd6cc499457b8646fc297298cfc21cc57c7198001d9ae53614774c0beef98 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:04:56,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:04:56,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:04:56,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:04:56,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:04:56,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:04:56,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:04:56,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:04:56,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:04:56,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:04:56,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:04:56,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:04:56,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:04:56,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:04:56,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:04:56,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:04:56,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:04:56,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:04:56,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:04:56,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:04:56,131 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:04:56,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:04:56,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:04:56,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:04:56,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:04:56,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:04:56,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:04:56,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:04:56,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:04:56,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:04:56,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:04:56,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:04:56,144 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:04:56,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:04:56,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:04:56,146 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:04:56,146 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:04:56,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:04:56,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:04:56,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:04:56,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:04:56,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:04:56,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:04:56,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:04:56,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:04:56,177 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:04:56,178 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:04:56,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:04:56,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:04:56,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:04:56,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:04:56,179 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:04:56,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:04:56,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:04:56,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:04:56,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:04:56,180 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:04:56,180 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:04:56,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:04:56,181 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:04:56,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:04:56,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:04:56,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:04:56,181 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:04:56,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:04:56,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:04:56,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:04:56,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:04:56,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:04:56,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:04:56,182 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:04:56,183 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:04:56,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:04:56,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a45fd6cc499457b8646fc297298cfc21cc57c7198001d9ae53614774c0beef98 [2022-07-21 13:04:56,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:04:56,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:04:56,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:04:56,502 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:04:56,507 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:04:56,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--gdm724x--gdmulte.ko-entry_point.cil.out.i [2022-07-21 13:04:56,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a98ceb902/8b03dab20e2148a38feaee3736b7b916/FLAG0990d7dc4 [2022-07-21 13:04:57,232 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:04:57,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--gdm724x--gdmulte.ko-entry_point.cil.out.i [2022-07-21 13:04:57,280 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a98ceb902/8b03dab20e2148a38feaee3736b7b916/FLAG0990d7dc4 [2022-07-21 13:04:57,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a98ceb902/8b03dab20e2148a38feaee3736b7b916 [2022-07-21 13:04:57,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:04:57,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:04:57,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:04:57,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:04:57,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:04:57,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:04:57" (1/1) ... [2022-07-21 13:04:57,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f505e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:57, skipping insertion in model container [2022-07-21 13:04:57,353 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:04:57" (1/1) ... [2022-07-21 13:04:57,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:04:57,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:04:58,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--gdm724x--gdmulte.ko-entry_point.cil.out.i[318493,318506] [2022-07-21 13:04:58,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:04:58,952 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:04:59,201 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--gdm724x--gdmulte.ko-entry_point.cil.out.i[318493,318506] [2022-07-21 13:04:59,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:04:59,313 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:04:59,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59 WrapperNode [2022-07-21 13:04:59,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:04:59,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:04:59,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:04:59,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:04:59,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,464 INFO L137 Inliner]: procedures = 311, calls = 1623, calls flagged for inlining = 133, calls inlined = 130, statements flattened = 4354 [2022-07-21 13:04:59,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:04:59,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:04:59,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:04:59,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:04:59,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:04:59,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:04:59,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:04:59,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:04:59,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (1/1) ... [2022-07-21 13:04:59,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:04:59,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:04:59,713 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 13:04:59,746 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 13:04:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-07-21 13:04:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-07-21 13:04:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_cpu_to_dev32 [2022-07-21 13:04:59,762 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_cpu_to_dev32 [2022-07-21 13:04:59,762 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-07-21 13:04:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-07-21 13:04:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure put_rx_struct [2022-07-21 13:04:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure put_rx_struct [2022-07-21 13:04:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 13:04:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 13:04:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_lte_netif_rx [2022-07-21 13:04:59,763 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_lte_netif_rx [2022-07-21 13:04:59,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:04:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:04:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:04:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:04:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 13:04:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 13:04:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:04:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:04:59,764 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-21 13:04:59,764 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-21 13:04:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-21 13:04:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-07-21 13:04:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-07-21 13:04:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_cpu_to_dev16 [2022-07-21 13:04:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_cpu_to_dev16 [2022-07-21 13:04:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_dev16_to_cpu [2022-07-21 13:04:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_dev16_to_cpu [2022-07-21 13:04:59,765 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_lte_stats [2022-07-21 13:04:59,765 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_lte_stats [2022-07-21 13:04:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure free_rx_struct [2022-07-21 13:04:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure free_rx_struct [2022-07-21 13:04:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-07-21 13:04:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-07-21 13:04:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 13:04:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 13:04:59,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 13:04:59,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 13:04:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 13:04:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 13:04:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:04:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:04:59,767 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 13:04:59,767 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 13:04:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_lte_set_config [2022-07-21 13:04:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_lte_set_config [2022-07-21 13:04:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_set_endian [2022-07-21 13:04:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_set_endian [2022-07-21 13:04:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 13:04:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 13:04:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:04:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 13:04:59,768 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 13:04:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-21 13:04:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_resume [2022-07-21 13:04:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_resume [2022-07-21 13:04:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:04:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_lte_rx [2022-07-21 13:04:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_lte_rx [2022-07-21 13:04:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure free_tx_sdu_struct [2022-07-21 13:04:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tx_sdu_struct [2022-07-21 13:04:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-07-21 13:04:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-07-21 13:04:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 13:04:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 13:04:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:04:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:04:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-21 13:04:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-21 13:04:59,772 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-07-21 13:04:59,772 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-07-21 13:04:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 13:04:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 13:04:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-21 13:04:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-21 13:04:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 13:04:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 13:04:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:04:59,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:04:59,773 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 13:04:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 13:04:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure packet_aggregation [2022-07-21 13:04:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure packet_aggregation [2022-07-21 13:04:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tx_struct [2022-07-21 13:04:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tx_struct [2022-07-21 13:04:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-21 13:04:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-21 13:04:59,774 INFO L130 BoogieDeclarations]: Found specification of procedure find_dev_index [2022-07-21 13:04:59,774 INFO L138 BoogieDeclarations]: Found implementation of procedure find_dev_index [2022-07-21 13:04:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 13:04:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 13:04:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 13:04:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-07-21 13:04:59,775 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-07-21 13:04:59,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 13:04:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure do_tx [2022-07-21 13:04:59,776 INFO L138 BoogieDeclarations]: Found implementation of procedure do_tx [2022-07-21 13:04:59,776 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-21 13:04:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-21 13:04:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2022-07-21 13:04:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2022-07-21 13:04:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 13:04:59,777 INFO L130 BoogieDeclarations]: Found specification of procedure netlink_has_listeners [2022-07-21 13:04:59,777 INFO L138 BoogieDeclarations]: Found implementation of procedure netlink_has_listeners [2022-07-21 13:04:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 13:04:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 13:04:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 13:04:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 13:04:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_copy [2022-07-21 13:04:59,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_copy [2022-07-21 13:04:59,778 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-21 13:04:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-21 13:04:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 13:04:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 13:04:59,779 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_send_complete [2022-07-21 13:04:59,779 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_send_complete [2022-07-21 13:04:59,780 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 13:04:59,780 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 13:04:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2022-07-21 13:04:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-07-21 13:04:59,782 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-07-21 13:04:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 13:04:59,782 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-21 13:04:59,783 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-21 13:04:59,783 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-21 13:04:59,784 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-21 13:04:59,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 13:04:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 13:04:59,787 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_disconnect [2022-07-21 13:04:59,787 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_disconnect [2022-07-21 13:04:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:04:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-21 13:04:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-21 13:04:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:04:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_usb_recv [2022-07-21 13:04:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_usb_recv [2022-07-21 13:04:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:04:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-21 13:04:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:04:59,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 13:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_lte_device [2022-07-21 13:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_lte_device [2022-07-21 13:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-07-21 13:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-07-21 13:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-07-21 13:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~$Pointer$ [2022-07-21 13:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-21 13:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-21 13:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2022-07-21 13:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2022-07-21 13:04:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-07-21 13:04:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-07-21 13:04:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure free_tx_struct [2022-07-21 13:04:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure free_tx_struct [2022-07-21 13:04:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-07-21 13:04:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-07-21 13:04:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 13:04:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 13:04:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure gdm_dev32_to_cpu [2022-07-21 13:04:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure gdm_dev32_to_cpu [2022-07-21 13:04:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-21 13:04:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-21 13:04:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure do_rx [2022-07-21 13:04:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure do_rx [2022-07-21 13:04:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 13:04:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2022-07-21 13:04:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2022-07-21 13:04:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure release_usb [2022-07-21 13:04:59,791 INFO L138 BoogieDeclarations]: Found implementation of procedure release_usb [2022-07-21 13:04:59,791 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-21 13:04:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-21 13:04:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-07-21 13:04:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-07-21 13:04:59,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:04:59,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:05:00,413 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:05:00,415 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:05:00,652 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:05:02,555 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:05:02,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:05:02,571 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-21 13:05:02,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:05:02 BoogieIcfgContainer [2022-07-21 13:05:02,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:05:02,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:05:02,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:05:02,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:05:02,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:04:57" (1/3) ... [2022-07-21 13:05:02,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c15f8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:05:02, skipping insertion in model container [2022-07-21 13:05:02,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:04:59" (2/3) ... [2022-07-21 13:05:02,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c15f8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:05:02, skipping insertion in model container [2022-07-21 13:05:02,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:05:02" (3/3) ... [2022-07-21 13:05:02,581 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--staging--gdm724x--gdmulte.ko-entry_point.cil.out.i [2022-07-21 13:05:02,590 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:05:02,590 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 13:05:02,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:05:02,660 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@280ca37a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@bbaf10d [2022-07-21 13:05:02,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 13:05:02,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 1526 states, 1043 states have (on average 1.3883029721955897) internal successors, (1448), 1083 states have internal predecessors, (1448), 404 states have call successors, (404), 78 states have call predecessors, (404), 77 states have return successors, (398), 388 states have call predecessors, (398), 398 states have call successors, (398) [2022-07-21 13:05:02,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-21 13:05:02,684 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:05:02,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:05:02,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:05:02,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:05:02,690 INFO L85 PathProgramCache]: Analyzing trace with hash 537382679, now seen corresponding path program 1 times [2022-07-21 13:05:02,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:05:02,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578825924] [2022-07-21 13:05:02,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:05:02,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:05:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:05:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:03,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:03,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:03,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:05:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:05:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 13:05:03,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:05:03,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578825924] [2022-07-21 13:05:03,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578825924] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:05:03,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:05:03,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:05:03,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771198752] [2022-07-21 13:05:03,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:05:03,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:05:03,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:05:03,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:05:03,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:05:03,105 INFO L87 Difference]: Start difference. First operand has 1526 states, 1043 states have (on average 1.3883029721955897) internal successors, (1448), 1083 states have internal predecessors, (1448), 404 states have call successors, (404), 78 states have call predecessors, (404), 77 states have return successors, (398), 388 states have call predecessors, (398), 398 states have call successors, (398) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 13:05:05,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:05:05,995 INFO L93 Difference]: Finished difference Result 3355 states and 5176 transitions. [2022-07-21 13:05:05,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 13:05:05,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2022-07-21 13:05:05,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:05:06,016 INFO L225 Difference]: With dead ends: 3355 [2022-07-21 13:05:06,022 INFO L226 Difference]: Without dead ends: 1818 [2022-07-21 13:05:06,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:05:06,042 INFO L413 NwaCegarLoop]: 2122 mSDtfsCounter, 1041 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 1371 mSolverCounterSat, 1165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 2536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1165 IncrementalHoareTripleChecker+Valid, 1371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 13:05:06,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 4126 Invalid, 2536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1165 Valid, 1371 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 13:05:06,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1818 states. [2022-07-21 13:05:06,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1818 to 1510. [2022-07-21 13:05:06,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1510 states, 1035 states have (on average 1.3371980676328503) internal successors, (1384), 1068 states have internal predecessors, (1384), 398 states have call successors, (398), 77 states have call predecessors, (398), 76 states have return successors, (396), 386 states have call predecessors, (396), 396 states have call successors, (396) [2022-07-21 13:05:06,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1510 states to 1510 states and 2178 transitions. [2022-07-21 13:05:06,150 INFO L78 Accepts]: Start accepts. Automaton has 1510 states and 2178 transitions. Word has length 49 [2022-07-21 13:05:06,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:05:06,151 INFO L495 AbstractCegarLoop]: Abstraction has 1510 states and 2178 transitions. [2022-07-21 13:05:06,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 13:05:06,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1510 states and 2178 transitions. [2022-07-21 13:05:06,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-21 13:05:06,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:05:06,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:05:06,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 13:05:06,154 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:05:06,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:05:06,155 INFO L85 PathProgramCache]: Analyzing trace with hash -491976619, now seen corresponding path program 1 times [2022-07-21 13:05:06,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:05:06,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907120441] [2022-07-21 13:05:06,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:05:06,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:05:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:06,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:05:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:06,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:05:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:06,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 13:05:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 13:05:06,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:05:06,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907120441] [2022-07-21 13:05:06,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907120441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:05:06,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:05:06,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:05:06,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524646098] [2022-07-21 13:05:06,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:05:06,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:05:06,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:05:06,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:05:06,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:05:06,297 INFO L87 Difference]: Start difference. First operand 1510 states and 2178 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 13:05:10,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:05:10,781 INFO L93 Difference]: Finished difference Result 4855 states and 7262 transitions. [2022-07-21 13:05:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:05:10,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2022-07-21 13:05:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:05:10,806 INFO L225 Difference]: With dead ends: 4855 [2022-07-21 13:05:10,807 INFO L226 Difference]: Without dead ends: 3355 [2022-07-21 13:05:10,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:05:10,821 INFO L413 NwaCegarLoop]: 2642 mSDtfsCounter, 4548 mSDsluCounter, 2682 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 3365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 5324 SdHoareTripleChecker+Invalid, 5577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3365 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:05:10,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 5324 Invalid, 5577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3365 Valid, 2212 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-21 13:05:10,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3355 states. [2022-07-21 13:05:11,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3355 to 2745. [2022-07-21 13:05:11,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2745 states, 1895 states have (on average 1.341424802110818) internal successors, (2542), 1952 states have internal predecessors, (2542), 710 states have call successors, (710), 140 states have call predecessors, (710), 139 states have return successors, (708), 689 states have call predecessors, (708), 708 states have call successors, (708) [2022-07-21 13:05:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2745 states to 2745 states and 3960 transitions. [2022-07-21 13:05:11,029 INFO L78 Accepts]: Start accepts. Automaton has 2745 states and 3960 transitions. Word has length 49 [2022-07-21 13:05:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:05:11,031 INFO L495 AbstractCegarLoop]: Abstraction has 2745 states and 3960 transitions. [2022-07-21 13:05:11,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-21 13:05:11,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2745 states and 3960 transitions. [2022-07-21 13:05:11,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 13:05:11,039 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:05:11,039 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 13:05:11,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 13:05:11,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:05:11,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:05:11,040 INFO L85 PathProgramCache]: Analyzing trace with hash -305469456, now seen corresponding path program 1 times [2022-07-21 13:05:11,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:05:11,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718567862] [2022-07-21 13:05:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:05:11,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:05:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:11,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:05:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:11,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:11,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:11,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:05:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:11,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 13:05:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:11,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:05:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:11,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 13:05:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:11,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 13:05:11,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:05:11,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718567862] [2022-07-21 13:05:11,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718567862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:05:11,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:05:11,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 13:05:11,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100626585] [2022-07-21 13:05:11,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:05:11,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:05:11,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:05:11,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:05:11,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:05:11,202 INFO L87 Difference]: Start difference. First operand 2745 states and 3960 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:05:19,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:05:19,201 INFO L93 Difference]: Finished difference Result 9823 states and 14952 transitions. [2022-07-21 13:05:19,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 13:05:19,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-07-21 13:05:19,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:05:19,246 INFO L225 Difference]: With dead ends: 9823 [2022-07-21 13:05:19,246 INFO L226 Difference]: Without dead ends: 7088 [2022-07-21 13:05:19,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-07-21 13:05:19,259 INFO L413 NwaCegarLoop]: 2189 mSDtfsCounter, 5702 mSDsluCounter, 4556 mSDsCounter, 0 mSdLazyCounter, 5465 mSolverCounterSat, 4304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6077 SdHoareTripleChecker+Valid, 6745 SdHoareTripleChecker+Invalid, 9769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4304 IncrementalHoareTripleChecker+Valid, 5465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-07-21 13:05:19,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6077 Valid, 6745 Invalid, 9769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4304 Valid, 5465 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-07-21 13:05:19,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7088 states. [2022-07-21 13:05:19,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7088 to 5665. [2022-07-21 13:05:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5665 states, 3946 states have (on average 1.3563101875316776) internal successors, (5352), 4067 states have internal predecessors, (5352), 1427 states have call successors, (1427), 279 states have call predecessors, (1427), 291 states have return successors, (1511), 1395 states have call predecessors, (1511), 1424 states have call successors, (1511) [2022-07-21 13:05:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5665 states to 5665 states and 8290 transitions. [2022-07-21 13:05:19,528 INFO L78 Accepts]: Start accepts. Automaton has 5665 states and 8290 transitions. Word has length 69 [2022-07-21 13:05:19,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:05:19,529 INFO L495 AbstractCegarLoop]: Abstraction has 5665 states and 8290 transitions. [2022-07-21 13:05:19,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:05:19,530 INFO L276 IsEmpty]: Start isEmpty. Operand 5665 states and 8290 transitions. [2022-07-21 13:05:19,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-21 13:05:19,532 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:05:19,533 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 13:05:19,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 13:05:19,533 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:05:19,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:05:19,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1077150297, now seen corresponding path program 1 times [2022-07-21 13:05:19,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:05:19,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056486945] [2022-07-21 13:05:19,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:05:19,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:05:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:19,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:05:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:19,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:19,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:05:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 13:05:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:19,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 13:05:19,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:19,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 13:05:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:19,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 13:05:19,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:05:19,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056486945] [2022-07-21 13:05:19,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056486945] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:05:19,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:05:19,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 13:05:19,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316836441] [2022-07-21 13:05:19,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:05:19,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:05:19,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:05:19,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:05:19,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:05:19,768 INFO L87 Difference]: Start difference. First operand 5665 states and 8290 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:05:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:05:26,255 INFO L93 Difference]: Finished difference Result 16269 states and 24834 transitions. [2022-07-21 13:05:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 13:05:26,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2022-07-21 13:05:26,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:05:26,308 INFO L225 Difference]: With dead ends: 16269 [2022-07-21 13:05:26,309 INFO L226 Difference]: Without dead ends: 10614 [2022-07-21 13:05:26,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-07-21 13:05:26,333 INFO L413 NwaCegarLoop]: 2178 mSDtfsCounter, 6393 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 4492 mSolverCounterSat, 4489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6766 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 8981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4489 IncrementalHoareTripleChecker+Valid, 4492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:05:26,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6766 Valid, 5851 Invalid, 8981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4489 Valid, 4492 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-07-21 13:05:26,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10614 states. [2022-07-21 13:05:26,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10614 to 8582. [2022-07-21 13:05:26,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8582 states, 5997 states have (on average 1.3611805902951475) internal successors, (8163), 6183 states have internal predecessors, (8163), 2141 states have call successors, (2141), 418 states have call predecessors, (2141), 443 states have return successors, (2333), 2097 states have call predecessors, (2333), 2137 states have call successors, (2333) [2022-07-21 13:05:26,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8582 states to 8582 states and 12637 transitions. [2022-07-21 13:05:26,744 INFO L78 Accepts]: Start accepts. Automaton has 8582 states and 12637 transitions. Word has length 71 [2022-07-21 13:05:26,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:05:26,745 INFO L495 AbstractCegarLoop]: Abstraction has 8582 states and 12637 transitions. [2022-07-21 13:05:26,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:05:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand 8582 states and 12637 transitions. [2022-07-21 13:05:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-21 13:05:26,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:05:26,748 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 13:05:26,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 13:05:26,749 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:05:26,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:05:26,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1392904398, now seen corresponding path program 1 times [2022-07-21 13:05:26,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:05:26,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176717042] [2022-07-21 13:05:26,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:05:26,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:05:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:05:26,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:26,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:26,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:05:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:26,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-21 13:05:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-21 13:05:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-21 13:05:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 13:05:26,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:05:26,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176717042] [2022-07-21 13:05:26,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176717042] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:05:26,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:05:26,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 13:05:26,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481275482] [2022-07-21 13:05:26,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:05:26,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:05:26,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:05:26,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:05:26,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:05:26,907 INFO L87 Difference]: Start difference. First operand 8582 states and 12637 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:05:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:05:33,256 INFO L93 Difference]: Finished difference Result 22511 states and 34314 transitions. [2022-07-21 13:05:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 13:05:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-07-21 13:05:33,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:05:33,360 INFO L225 Difference]: With dead ends: 22511 [2022-07-21 13:05:33,360 INFO L226 Difference]: Without dead ends: 13939 [2022-07-21 13:05:33,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-07-21 13:05:33,390 INFO L413 NwaCegarLoop]: 2291 mSDtfsCounter, 5249 mSDsluCounter, 3943 mSDsCounter, 0 mSdLazyCounter, 4495 mSolverCounterSat, 4247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5621 SdHoareTripleChecker+Valid, 6234 SdHoareTripleChecker+Invalid, 8742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4247 IncrementalHoareTripleChecker+Valid, 4495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:05:33,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5621 Valid, 6234 Invalid, 8742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4247 Valid, 4495 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-07-21 13:05:33,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13939 states. [2022-07-21 13:05:33,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13939 to 11449. [2022-07-21 13:05:33,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11449 states, 8014 states have (on average 1.3637384576990268) internal successors, (10929), 8269 states have internal predecessors, (10929), 2843 states have call successors, (2843), 557 states have call predecessors, (2843), 591 states have return successors, (3148), 2777 states have call predecessors, (3148), 2838 states have call successors, (3148) [2022-07-21 13:05:33,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11449 states to 11449 states and 16920 transitions. [2022-07-21 13:05:33,848 INFO L78 Accepts]: Start accepts. Automaton has 11449 states and 16920 transitions. Word has length 68 [2022-07-21 13:05:33,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:05:33,849 INFO L495 AbstractCegarLoop]: Abstraction has 11449 states and 16920 transitions. [2022-07-21 13:05:33,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:05:33,849 INFO L276 IsEmpty]: Start isEmpty. Operand 11449 states and 16920 transitions. [2022-07-21 13:05:33,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-21 13:05:33,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:05:33,851 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 13:05:33,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 13:05:33,851 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:05:33,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:05:33,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1859013993, now seen corresponding path program 1 times [2022-07-21 13:05:33,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:05:33,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189345326] [2022-07-21 13:05:33,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:05:33,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:05:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:33,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:05:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:33,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:33,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:05:33,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:33,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-21 13:05:33,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:33,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-21 13:05:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:33,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 13:05:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:34,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-07-21 13:05:34,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:05:34,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189345326] [2022-07-21 13:05:34,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189345326] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:05:34,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:05:34,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 13:05:34,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924915809] [2022-07-21 13:05:34,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:05:34,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:05:34,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:05:34,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:05:34,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 13:05:34,003 INFO L87 Difference]: Start difference. First operand 11449 states and 16920 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:05:40,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:05:40,100 INFO L93 Difference]: Finished difference Result 27910 states and 42441 transitions. [2022-07-21 13:05:40,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 13:05:40,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-07-21 13:05:40,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:05:40,349 INFO L225 Difference]: With dead ends: 27910 [2022-07-21 13:05:40,350 INFO L226 Difference]: Without dead ends: 16427 [2022-07-21 13:05:40,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-07-21 13:05:40,373 INFO L413 NwaCegarLoop]: 2312 mSDtfsCounter, 5985 mSDsluCounter, 3946 mSDsCounter, 0 mSdLazyCounter, 4490 mSolverCounterSat, 4480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6359 SdHoareTripleChecker+Valid, 6258 SdHoareTripleChecker+Invalid, 8970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4480 IncrementalHoareTripleChecker+Valid, 4490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:05:40,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6359 Valid, 6258 Invalid, 8970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4480 Valid, 4490 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-21 13:05:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16427 states. [2022-07-21 13:05:40,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16427 to 13502. [2022-07-21 13:05:40,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13502 states, 9434 states have (on average 1.3522365910536358) internal successors, (12757), 9706 states have internal predecessors, (12757), 3363 states have call successors, (3363), 669 states have call predecessors, (3363), 704 states have return successors, (3683), 3298 states have call predecessors, (3683), 3358 states have call successors, (3683) [2022-07-21 13:05:40,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13502 states to 13502 states and 19803 transitions. [2022-07-21 13:05:40,827 INFO L78 Accepts]: Start accepts. Automaton has 13502 states and 19803 transitions. Word has length 70 [2022-07-21 13:05:40,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:05:40,828 INFO L495 AbstractCegarLoop]: Abstraction has 13502 states and 19803 transitions. [2022-07-21 13:05:40,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-21 13:05:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 13502 states and 19803 transitions. [2022-07-21 13:05:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-21 13:05:40,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:05:40,830 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-21 13:05:40,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 13:05:40,831 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:05:40,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:05:40,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1015390489, now seen corresponding path program 1 times [2022-07-21 13:05:40,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:05:40,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538207744] [2022-07-21 13:05:40,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:05:40,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:05:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:05:40,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:40,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:40,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:40,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:05:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:40,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 13:05:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:40,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:40,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:40,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 13:05:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 13:05:40,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:05:40,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538207744] [2022-07-21 13:05:40,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538207744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:05:40,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:05:40,995 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:05:40,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342105420] [2022-07-21 13:05:40,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:05:40,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:05:40,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:05:40,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:05:40,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:05:40,997 INFO L87 Difference]: Start difference. First operand 13502 states and 19803 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-21 13:05:44,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:05:44,034 INFO L93 Difference]: Finished difference Result 16802 states and 25517 transitions. [2022-07-21 13:05:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:05:44,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 86 [2022-07-21 13:05:44,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:05:44,097 INFO L225 Difference]: With dead ends: 16802 [2022-07-21 13:05:44,097 INFO L226 Difference]: Without dead ends: 16799 [2022-07-21 13:05:44,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:05:44,109 INFO L413 NwaCegarLoop]: 2134 mSDtfsCounter, 3069 mSDsluCounter, 2071 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 1635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3283 SdHoareTripleChecker+Valid, 4205 SdHoareTripleChecker+Invalid, 3298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1635 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 13:05:44,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3283 Valid, 4205 Invalid, 3298 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1635 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 13:05:44,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16799 states. [2022-07-21 13:05:44,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16799 to 13987. [2022-07-21 13:05:44,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13987 states, 9744 states have (on average 1.3473932676518883) internal successors, (13129), 10032 states have internal predecessors, (13129), 3467 states have call successors, (3467), 740 states have call predecessors, (3467), 775 states have return successors, (3787), 3402 states have call predecessors, (3787), 3462 states have call successors, (3787) [2022-07-21 13:05:44,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13987 states to 13987 states and 20383 transitions. [2022-07-21 13:05:44,751 INFO L78 Accepts]: Start accepts. Automaton has 13987 states and 20383 transitions. Word has length 86 [2022-07-21 13:05:44,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:05:44,752 INFO L495 AbstractCegarLoop]: Abstraction has 13987 states and 20383 transitions. [2022-07-21 13:05:44,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-21 13:05:44,752 INFO L276 IsEmpty]: Start isEmpty. Operand 13987 states and 20383 transitions. [2022-07-21 13:05:44,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-07-21 13:05:44,760 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:05:44,760 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:05:44,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 13:05:44,760 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:05:44,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:05:44,763 INFO L85 PathProgramCache]: Analyzing trace with hash -565835672, now seen corresponding path program 1 times [2022-07-21 13:05:44,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:05:44,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117244808] [2022-07-21 13:05:44,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:05:44,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:05:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:05:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:44,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:05:44,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 13:05:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:44,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 13:05:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 13:05:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 13:05:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 13:05:44,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 13:05:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:44,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:45,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 13:05:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:45,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-21 13:05:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 13:05:45,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:45,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 13:05:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:45,021 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-21 13:05:45,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:05:45,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117244808] [2022-07-21 13:05:45,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117244808] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:05:45,022 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:05:45,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 13:05:45,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145541929] [2022-07-21 13:05:45,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:05:45,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 13:05:45,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:05:45,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 13:05:45,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:05:45,023 INFO L87 Difference]: Start difference. First operand 13987 states and 20383 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 13:05:56,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:05:56,266 INFO L93 Difference]: Finished difference Result 40146 states and 60650 transitions. [2022-07-21 13:05:56,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 13:05:56,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 173 [2022-07-21 13:05:56,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:05:56,389 INFO L225 Difference]: With dead ends: 40146 [2022-07-21 13:05:56,389 INFO L226 Difference]: Without dead ends: 26169 [2022-07-21 13:05:56,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2022-07-21 13:05:56,437 INFO L413 NwaCegarLoop]: 3434 mSDtfsCounter, 5357 mSDsluCounter, 6655 mSDsCounter, 0 mSdLazyCounter, 6367 mSolverCounterSat, 4999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5717 SdHoareTripleChecker+Valid, 10089 SdHoareTripleChecker+Invalid, 11366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4999 IncrementalHoareTripleChecker+Valid, 6367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-07-21 13:05:56,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5717 Valid, 10089 Invalid, 11366 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4999 Valid, 6367 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-07-21 13:05:56,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26169 states. [2022-07-21 13:05:57,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26169 to 20775. [2022-07-21 13:05:57,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20775 states, 14493 states have (on average 1.3469951010832817) internal successors, (19522), 14905 states have internal predecessors, (19522), 5154 states have call successors, (5154), 1079 states have call predecessors, (5154), 1127 states have return successors, (5608), 5069 states have call predecessors, (5608), 5149 states have call successors, (5608) [2022-07-21 13:05:57,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20775 states to 20775 states and 30284 transitions. [2022-07-21 13:05:57,496 INFO L78 Accepts]: Start accepts. Automaton has 20775 states and 30284 transitions. Word has length 173 [2022-07-21 13:05:57,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:05:57,497 INFO L495 AbstractCegarLoop]: Abstraction has 20775 states and 30284 transitions. [2022-07-21 13:05:57,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (22), 8 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-21 13:05:57,497 INFO L276 IsEmpty]: Start isEmpty. Operand 20775 states and 30284 transitions. [2022-07-21 13:05:57,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-07-21 13:05:57,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:05:57,508 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:05:57,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 13:05:57,508 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:05:57,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:05:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash 684186662, now seen corresponding path program 1 times [2022-07-21 13:05:57,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:05:57,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109303139] [2022-07-21 13:05:57,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:05:57,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:05:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:05:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:57,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:05:57,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 13:05:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:57,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 13:05:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-21 13:05:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 13:05:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 13:05:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 13:05:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 13:05:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:05:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:05:57,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 13:05:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 13:05:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 13:05:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-21 13:05:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:05:57,964 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-21 13:05:57,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:05:57,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109303139] [2022-07-21 13:05:57,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109303139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:05:57,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:05:57,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 13:05:57,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365205988] [2022-07-21 13:05:57,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:05:57,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 13:05:57,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:05:57,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 13:05:57,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-07-21 13:05:57,967 INFO L87 Difference]: Start difference. First operand 20775 states and 30284 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:06:12,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:06:12,141 INFO L93 Difference]: Finished difference Result 61851 states and 93429 transitions. [2022-07-21 13:06:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 13:06:12,142 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 186 [2022-07-21 13:06:12,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:06:12,290 INFO L225 Difference]: With dead ends: 61851 [2022-07-21 13:06:12,290 INFO L226 Difference]: Without dead ends: 41086 [2022-07-21 13:06:12,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-07-21 13:06:12,347 INFO L413 NwaCegarLoop]: 2892 mSDtfsCounter, 5909 mSDsluCounter, 6718 mSDsCounter, 0 mSdLazyCounter, 9246 mSolverCounterSat, 4225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6118 SdHoareTripleChecker+Valid, 9610 SdHoareTripleChecker+Invalid, 13471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4225 IncrementalHoareTripleChecker+Valid, 9246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:06:12,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6118 Valid, 9610 Invalid, 13471 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4225 Valid, 9246 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-07-21 13:06:12,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41086 states. [2022-07-21 13:06:14,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41086 to 32211. [2022-07-21 13:06:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32211 states, 22368 states have (on average 1.34585121602289) internal successors, (30104), 23071 states have internal predecessors, (30104), 8010 states have call successors, (8010), 1749 states have call predecessors, (8010), 1832 states have return successors, (8761), 7864 states have call predecessors, (8761), 8001 states have call successors, (8761) [2022-07-21 13:06:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32211 states to 32211 states and 46875 transitions. [2022-07-21 13:06:14,228 INFO L78 Accepts]: Start accepts. Automaton has 32211 states and 46875 transitions. Word has length 186 [2022-07-21 13:06:14,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:06:14,229 INFO L495 AbstractCegarLoop]: Abstraction has 32211 states and 46875 transitions. [2022-07-21 13:06:14,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (23), 8 states have call predecessors, (23), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 13:06:14,229 INFO L276 IsEmpty]: Start isEmpty. Operand 32211 states and 46875 transitions. [2022-07-21 13:06:14,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-07-21 13:06:14,246 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:06:14,246 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:06:14,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 13:06:14,246 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:06:14,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:06:14,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1672372534, now seen corresponding path program 1 times [2022-07-21 13:06:14,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:06:14,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840572877] [2022-07-21 13:06:14,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:06:14,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:06:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:06:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:06:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 13:06:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 13:06:14,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 13:06:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 13:06:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 13:06:14,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 13:06:14,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 13:06:14,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 13:06:14,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 13:06:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-21 13:06:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-21 13:06:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 13:06:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:14,750 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-07-21 13:06:14,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:06:14,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840572877] [2022-07-21 13:06:14,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840572877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:06:14,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:06:14,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 13:06:14,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314786719] [2022-07-21 13:06:14,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:06:14,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 13:06:14,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:06:14,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 13:06:14,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-21 13:06:14,753 INFO L87 Difference]: Start difference. First operand 32211 states and 46875 transitions. Second operand has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (26), 9 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 13:06:31,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:06:31,941 INFO L93 Difference]: Finished difference Result 92912 states and 143084 transitions. [2022-07-21 13:06:31,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-21 13:06:31,942 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (26), 9 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 206 [2022-07-21 13:06:31,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:06:32,245 INFO L225 Difference]: With dead ends: 92912 [2022-07-21 13:06:32,245 INFO L226 Difference]: Without dead ends: 60711 [2022-07-21 13:06:32,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2022-07-21 13:06:32,354 INFO L413 NwaCegarLoop]: 2791 mSDtfsCounter, 7912 mSDsluCounter, 6623 mSDsCounter, 0 mSdLazyCounter, 10088 mSolverCounterSat, 6755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8136 SdHoareTripleChecker+Valid, 9414 SdHoareTripleChecker+Invalid, 16843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6755 IncrementalHoareTripleChecker+Valid, 10088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-07-21 13:06:32,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8136 Valid, 9414 Invalid, 16843 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6755 Valid, 10088 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2022-07-21 13:06:32,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60711 states. [2022-07-21 13:06:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60711 to 32211. [2022-07-21 13:06:34,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32211 states, 22368 states have (on average 1.34585121602289) internal successors, (30104), 23071 states have internal predecessors, (30104), 8010 states have call successors, (8010), 1749 states have call predecessors, (8010), 1832 states have return successors, (8761), 7864 states have call predecessors, (8761), 8001 states have call successors, (8761) [2022-07-21 13:06:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32211 states to 32211 states and 46875 transitions. [2022-07-21 13:06:35,005 INFO L78 Accepts]: Start accepts. Automaton has 32211 states and 46875 transitions. Word has length 206 [2022-07-21 13:06:35,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:06:35,006 INFO L495 AbstractCegarLoop]: Abstraction has 32211 states and 46875 transitions. [2022-07-21 13:06:35,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (26), 9 states have call predecessors, (26), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-21 13:06:35,006 INFO L276 IsEmpty]: Start isEmpty. Operand 32211 states and 46875 transitions. [2022-07-21 13:06:35,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-07-21 13:06:35,022 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:06:35,023 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:06:35,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 13:06:35,023 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:06:35,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:06:35,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1718121921, now seen corresponding path program 1 times [2022-07-21 13:06:35,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:06:35,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373341797] [2022-07-21 13:06:35,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:06:35,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:06:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:06:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:06:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 13:06:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:35,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 13:06:35,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 13:06:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:35,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 13:06:35,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 13:06:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 13:06:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 13:06:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 13:06:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 13:06:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 13:06:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 13:06:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 13:06:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 13:06:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 13:06:35,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2022-07-21 13:06:35,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:06:35,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373341797] [2022-07-21 13:06:35,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373341797] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 13:06:35,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160115190] [2022-07-21 13:06:35,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:06:35,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:06:35,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:06:35,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 13:06:35,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 13:06:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:36,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-21 13:06:36,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:06:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-07-21 13:06:36,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:06:36,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160115190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:06:36,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:06:36,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-21 13:06:36,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545777090] [2022-07-21 13:06:36,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:06:36,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 13:06:36,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:06:36,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 13:06:36,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-21 13:06:36,272 INFO L87 Difference]: Start difference. First operand 32211 states and 46875 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 13:06:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:06:38,614 INFO L93 Difference]: Finished difference Result 71007 states and 103338 transitions. [2022-07-21 13:06:38,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 13:06:38,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 228 [2022-07-21 13:06:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:06:38,763 INFO L225 Difference]: With dead ends: 71007 [2022-07-21 13:06:38,763 INFO L226 Difference]: Without dead ends: 38806 [2022-07-21 13:06:38,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-07-21 13:06:38,846 INFO L413 NwaCegarLoop]: 2531 mSDtfsCounter, 2115 mSDsluCounter, 1841 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 4372 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 13:06:38,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2115 Valid, 4372 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 13:06:38,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38806 states. [2022-07-21 13:06:41,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38806 to 38774. [2022-07-21 13:06:41,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38774 states, 26982 states have (on average 1.3472685494033059) internal successors, (36352), 27807 states have internal predecessors, (36352), 9606 states have call successors, (9606), 2090 states have call predecessors, (9606), 2185 states have return successors, (10463), 9430 states have call predecessors, (10463), 9597 states have call successors, (10463) [2022-07-21 13:06:41,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38774 states to 38774 states and 56421 transitions. [2022-07-21 13:06:41,358 INFO L78 Accepts]: Start accepts. Automaton has 38774 states and 56421 transitions. Word has length 228 [2022-07-21 13:06:41,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:06:41,359 INFO L495 AbstractCegarLoop]: Abstraction has 38774 states and 56421 transitions. [2022-07-21 13:06:41,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-21 13:06:41,360 INFO L276 IsEmpty]: Start isEmpty. Operand 38774 states and 56421 transitions. [2022-07-21 13:06:41,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-21 13:06:41,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:06:41,384 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:06:41,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 13:06:41,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-21 13:06:41,607 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:06:41,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:06:41,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1883306169, now seen corresponding path program 1 times [2022-07-21 13:06:41,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:06:41,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592475273] [2022-07-21 13:06:41,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:06:41,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:06:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:06:41,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:41,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:06:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 13:06:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:41,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 13:06:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 13:06:41,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:41,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 13:06:41,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 13:06:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-21 13:06:41,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-07-21 13:06:41,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 13:06:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 13:06:41,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 13:06:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 13:06:41,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:41,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 13:06:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 13:06:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-21 13:06:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 13:06:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-07-21 13:06:41,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:06:41,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592475273] [2022-07-21 13:06:41,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592475273] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:06:41,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:06:41,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 13:06:41,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113872464] [2022-07-21 13:06:41,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:06:41,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 13:06:41,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:06:41,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 13:06:41,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2022-07-21 13:06:41,983 INFO L87 Difference]: Start difference. First operand 38774 states and 56421 transitions. Second operand has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (29), 10 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-21 13:07:07,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:07:07,556 INFO L93 Difference]: Finished difference Result 108472 states and 166707 transitions. [2022-07-21 13:07:07,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-21 13:07:07,556 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (29), 10 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 244 [2022-07-21 13:07:07,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:07:07,916 INFO L225 Difference]: With dead ends: 108472 [2022-07-21 13:07:07,916 INFO L226 Difference]: Without dead ends: 69708 [2022-07-21 13:07:08,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=250, Invalid=1010, Unknown=0, NotChecked=0, Total=1260 [2022-07-21 13:07:08,147 INFO L413 NwaCegarLoop]: 3380 mSDtfsCounter, 8098 mSDsluCounter, 14130 mSDsCounter, 0 mSdLazyCounter, 17851 mSolverCounterSat, 7965 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8326 SdHoareTripleChecker+Valid, 17510 SdHoareTripleChecker+Invalid, 25816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7965 IncrementalHoareTripleChecker+Valid, 17851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-07-21 13:07:08,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8326 Valid, 17510 Invalid, 25816 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7965 Valid, 17851 Invalid, 0 Unknown, 0 Unchecked, 19.7s Time] [2022-07-21 13:07:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69708 states. [2022-07-21 13:07:11,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69708 to 38789. [2022-07-21 13:07:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38789 states, 26987 states have (on average 1.347204209434172) internal successors, (36357), 27807 states have internal predecessors, (36357), 9616 states have call successors, (9616), 2090 states have call predecessors, (9616), 2185 states have return successors, (10473), 9435 states have call predecessors, (10473), 9607 states have call successors, (10473) [2022-07-21 13:07:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38789 states to 38789 states and 56446 transitions. [2022-07-21 13:07:11,646 INFO L78 Accepts]: Start accepts. Automaton has 38789 states and 56446 transitions. Word has length 244 [2022-07-21 13:07:11,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:07:11,663 INFO L495 AbstractCegarLoop]: Abstraction has 38789 states and 56446 transitions. [2022-07-21 13:07:11,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 10.692307692307692) internal successors, (139), 5 states have internal predecessors, (139), 3 states have call successors, (29), 10 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-21 13:07:11,664 INFO L276 IsEmpty]: Start isEmpty. Operand 38789 states and 56446 transitions. [2022-07-21 13:07:11,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-07-21 13:07:11,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:07:11,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:07:11,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 13:07:11,694 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:07:11,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:07:11,694 INFO L85 PathProgramCache]: Analyzing trace with hash -891727683, now seen corresponding path program 1 times [2022-07-21 13:07:11,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:07:11,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550680061] [2022-07-21 13:07:11,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:07:11,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:07:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:07:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:07:11,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 13:07:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:11,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 13:07:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:11,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-21 13:07:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 13:07:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 13:07:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-21 13:07:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 13:07:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:07:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 13:07:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:07:11,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 13:07:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-21 13:07:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-21 13:07:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-21 13:07:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-21 13:07:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 13:07:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 13:07:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 13:07:11,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:11,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 13:07:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:11,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-21 13:07:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:12,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-21 13:07:12,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:12,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 13:07:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:12,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-21 13:07:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:12,016 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-07-21 13:07:12,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:07:12,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550680061] [2022-07-21 13:07:12,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550680061] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:07:12,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:07:12,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 13:07:12,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139567083] [2022-07-21 13:07:12,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:07:12,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 13:07:12,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:07:12,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 13:07:12,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:07:12,018 INFO L87 Difference]: Start difference. First operand 38789 states and 56446 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (35), 7 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-21 13:07:30,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:07:30,736 INFO L93 Difference]: Finished difference Result 128490 states and 196599 transitions. [2022-07-21 13:07:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 13:07:30,737 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (35), 7 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 259 [2022-07-21 13:07:30,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:07:31,365 INFO L225 Difference]: With dead ends: 128490 [2022-07-21 13:07:31,366 INFO L226 Difference]: Without dead ends: 89711 [2022-07-21 13:07:31,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2022-07-21 13:07:31,483 INFO L413 NwaCegarLoop]: 2147 mSDtfsCounter, 7158 mSDsluCounter, 5204 mSDsCounter, 0 mSdLazyCounter, 6676 mSolverCounterSat, 6138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7340 SdHoareTripleChecker+Valid, 7351 SdHoareTripleChecker+Invalid, 12814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6138 IncrementalHoareTripleChecker+Valid, 6676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-07-21 13:07:31,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7340 Valid, 7351 Invalid, 12814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6138 Valid, 6676 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-07-21 13:07:31,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89711 states. [2022-07-21 13:07:37,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89711 to 71119. [2022-07-21 13:07:37,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71119 states, 49609 states have (on average 1.3663448164647545) internal successors, (67783), 51431 states have internal predecessors, (67783), 17065 states have call successors, (17065), 4023 states have call predecessors, (17065), 4444 states have return successors, (21669), 16776 states have call predecessors, (21669), 17048 states have call successors, (21669) [2022-07-21 13:07:37,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71119 states to 71119 states and 106517 transitions. [2022-07-21 13:07:37,420 INFO L78 Accepts]: Start accepts. Automaton has 71119 states and 106517 transitions. Word has length 259 [2022-07-21 13:07:37,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:07:37,420 INFO L495 AbstractCegarLoop]: Abstraction has 71119 states and 106517 transitions. [2022-07-21 13:07:37,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (35), 7 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-21 13:07:37,421 INFO L276 IsEmpty]: Start isEmpty. Operand 71119 states and 106517 transitions. [2022-07-21 13:07:37,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-07-21 13:07:37,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:07:37,492 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 13:07:37,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 13:07:37,492 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:07:37,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:07:37,492 INFO L85 PathProgramCache]: Analyzing trace with hash 886602522, now seen corresponding path program 1 times [2022-07-21 13:07:37,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:07:37,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191873471] [2022-07-21 13:07:37,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:07:37,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:07:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:07:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 13:07:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-21 13:07:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-21 13:07:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 13:07:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:37,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:37,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 13:07:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:37,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 13:07:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 13:07:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 13:07:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 13:07:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 13:07:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 13:07:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 13:07:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-21 13:07:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-07-21 13:07:37,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-21 13:07:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 13:07:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-21 13:07:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-21 13:07:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-21 13:07:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-21 13:07:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 13:07:37,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 13:07:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 13:07:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-07-21 13:07:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-21 13:07:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-21 13:07:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-21 13:07:37,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 13:07:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-21 13:07:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 13:07:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 13:07:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 13:07:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 13:07:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 13:07:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 13:07:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 13:07:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-21 13:07:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-21 13:07:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:37,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-07-21 13:07:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:38,004 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-07-21 13:07:38,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:07:38,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191873471] [2022-07-21 13:07:38,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191873471] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:07:38,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:07:38,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 13:07:38,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75462478] [2022-07-21 13:07:38,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:07:38,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 13:07:38,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:07:38,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 13:07:38,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-21 13:07:38,009 INFO L87 Difference]: Start difference. First operand 71119 states and 106517 transitions. Second operand has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (52), 10 states have call predecessors, (52), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-07-21 13:07:56,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:07:56,874 INFO L93 Difference]: Finished difference Result 183219 states and 290006 transitions. [2022-07-21 13:07:56,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 13:07:56,875 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.181818181818182) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (52), 10 states have call predecessors, (52), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 354 [2022-07-21 13:07:56,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:07:57,647 INFO L225 Difference]: With dead ends: 183219 [2022-07-21 13:07:57,647 INFO L226 Difference]: Without dead ends: 112120 [2022-07-21 13:07:57,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2022-07-21 13:07:57,929 INFO L413 NwaCegarLoop]: 2821 mSDtfsCounter, 3357 mSDsluCounter, 7805 mSDsCounter, 0 mSdLazyCounter, 6460 mSolverCounterSat, 1775 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 10626 SdHoareTripleChecker+Invalid, 8235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1775 IncrementalHoareTripleChecker+Valid, 6460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:07:57,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 10626 Invalid, 8235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1775 Valid, 6460 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-07-21 13:07:58,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112120 states.