./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.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 fa9ec5014a93fa4ada80c2707ca9ad7bdd1ffda04a5a3c96f283fdf229b22b41 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 01:00:02,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 01:00:02,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 01:00:02,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 01:00:02,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 01:00:02,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 01:00:02,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 01:00:02,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 01:00:02,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 01:00:02,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 01:00:02,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 01:00:02,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 01:00:02,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 01:00:02,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 01:00:02,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 01:00:02,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 01:00:02,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 01:00:02,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 01:00:02,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 01:00:02,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 01:00:02,694 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 01:00:02,695 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 01:00:02,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 01:00:02,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 01:00:02,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 01:00:02,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 01:00:02,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 01:00:02,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 01:00:02,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 01:00:02,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 01:00:02,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 01:00:02,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 01:00:02,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 01:00:02,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 01:00:02,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 01:00:02,704 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 01:00:02,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 01:00:02,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 01:00:02,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 01:00:02,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 01:00:02,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 01:00:02,707 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 01:00:02,721 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 01:00:02,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 01:00:02,724 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 01:00:02,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 01:00:02,725 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 01:00:02,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 01:00:02,726 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 01:00:02,726 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 01:00:02,726 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 01:00:02,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 01:00:02,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 01:00:02,727 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 01:00:02,727 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 01:00:02,727 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 01:00:02,727 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 01:00:02,727 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 01:00:02,728 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 01:00:02,728 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 01:00:02,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 01:00:02,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 01:00:02,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 01:00:02,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:00:02,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 01:00:02,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 01:00:02,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 01:00:02,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 01:00:02,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 01:00:02,729 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 01:00:02,729 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 01:00:02,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 01:00:02,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 01:00:02,730 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa9ec5014a93fa4ada80c2707ca9ad7bdd1ffda04a5a3c96f283fdf229b22b41 [2021-11-17 01:00:02,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 01:00:02,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 01:00:02,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 01:00:02,927 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 01:00:02,927 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 01:00:02,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-11-17 01:00:02,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d537f1b8/d5480b8936274ddc994788a4da16477f/FLAG8c083073c [2021-11-17 01:00:03,630 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 01:00:03,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-11-17 01:00:03,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d537f1b8/d5480b8936274ddc994788a4da16477f/FLAG8c083073c [2021-11-17 01:00:03,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d537f1b8/d5480b8936274ddc994788a4da16477f [2021-11-17 01:00:03,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 01:00:03,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 01:00:03,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 01:00:03,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 01:00:03,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 01:00:03,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:00:03" (1/1) ... [2021-11-17 01:00:03,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2082ba56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:03, skipping insertion in model container [2021-11-17 01:00:03,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 01:00:03" (1/1) ... [2021-11-17 01:00:03,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 01:00:03,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 01:00:04,996 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[223336,223349] [2021-11-17 01:00:06,295 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:00:06,336 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 01:00:06,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i[223336,223349] [2021-11-17 01:00:06,691 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 01:00:06,771 INFO L208 MainTranslator]: Completed translation [2021-11-17 01:00:06,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06 WrapperNode [2021-11-17 01:00:06,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 01:00:06,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 01:00:06,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 01:00:06,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 01:00:06,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:06,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:07,062 INFO L137 Inliner]: procedures = 418, calls = 3842, calls flagged for inlining = 181, calls inlined = 158, statements flattened = 7816 [2021-11-17 01:00:07,063 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 01:00:07,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 01:00:07,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 01:00:07,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 01:00:07,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:07,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:07,113 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:07,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:07,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:07,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:07,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:07,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 01:00:07,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 01:00:07,374 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 01:00:07,374 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 01:00:07,375 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (1/1) ... [2021-11-17 01:00:07,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 01:00:07,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:00:07,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 01:00:07,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 01:00:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_radio_disable [2021-11-17 01:00:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_radio_disable [2021-11-17 01:00:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_key [2021-11-17 01:00:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_key [2021-11-17 01:00:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_use_fixed_rate_ap [2021-11-17 01:00:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_use_fixed_rate_ap [2021-11-17 01:00:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 01:00:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 01:00:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_rts_threshold [2021-11-17 01:00:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_rts_threshold [2021-11-17 01:00:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-17 01:00:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-17 01:00:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 01:00:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 01:00:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_interface [2021-11-17 01:00:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_interface [2021-11-17 01:00:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-11-17 01:00:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-11-17 01:00:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-17 01:00:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-17 01:00:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-11-17 01:00:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-11-17 01:00:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 01:00:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 01:00:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-17 01:00:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-17 01:00:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-17 01:00:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-17 01:00:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_prepare_multicast [2021-11-17 01:00:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_prepare_multicast [2021-11-17 01:00:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_feed_fw_image [2021-11-17 01:00:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_feed_fw_image [2021-11-17 01:00:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_release_firmware [2021-11-17 01:00:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_release_firmware [2021-11-17 01:00:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-17 01:00:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-17 01:00:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-17 01:00:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_radio_enable [2021-11-17 01:00:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_radio_enable [2021-11-17 01:00:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_mgmt [2021-11-17 01:00:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_mgmt [2021-11-17 01:00:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_ap_process [2021-11-17 01:00:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_ap_process [2021-11-17 01:00:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-11-17 01:00:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_fw_unlock [2021-11-17 01:00:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_fw_unlock [2021-11-17 01:00:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_get_stats [2021-11-17 01:00:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_get_stats [2021-11-17 01:00:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-17 01:00:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-17 01:00:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 01:00:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-17 01:00:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-17 01:00:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 01:00:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 01:00:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_configure_filter [2021-11-17 01:00:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_configure_filter [2021-11-17 01:00:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_ht_caps [2021-11-17 01:00:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_ht_caps [2021-11-17 01:00:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_start [2021-11-17 01:00:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_start [2021-11-17 01:00:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_request_fw [2021-11-17 01:00:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_request_fw [2021-11-17 01:00:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-17 01:00:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-17 01:00:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-17 01:00:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-17 01:00:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 01:00:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 01:00:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 01:00:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 01:00:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_load_firmware [2021-11-17 01:00:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_load_firmware [2021-11-17 01:00:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 01:00:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 01:00:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 01:00:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-11-17 01:00:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-11-17 01:00:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_probe_hw [2021-11-17 01:00:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_probe_hw [2021-11-17 01:00:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure SET_IEEE80211_PERM_ADDR [2021-11-17 01:00:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure SET_IEEE80211_PERM_ADDR [2021-11-17 01:00:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 01:00:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 01:00:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_name [2021-11-17 01:00:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_name [2021-11-17 01:00:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_tx [2021-11-17 01:00:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_tx [2021-11-17 01:00:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-17 01:00:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-17 01:00:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-17 01:00:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-17 01:00:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sw_scan_start [2021-11-17 01:00:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sw_scan_start [2021-11-17 01:00:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-17 01:00:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-17 01:00:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 01:00:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 01:00:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_ap_refill [2021-11-17 01:00:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_ap_refill [2021-11-17 01:00:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_caps [2021-11-17 01:00:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_caps [2021-11-17 01:00:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2021-11-17 01:00:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-17 01:00:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-17 01:00:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_wmm_mode [2021-11-17 01:00:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_wmm_mode [2021-11-17 01:00:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 01:00:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_get_survey [2021-11-17 01:00:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_get_survey [2021-11-17 01:00:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-17 01:00:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-17 01:00:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 01:00:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-17 01:00:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-17 01:00:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 01:00:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 01:00:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 01:00:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 01:00:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_add_stream [2021-11-17 01:00:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_add_stream [2021-11-17 01:00:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_sta_init [2021-11-17 01:00:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_sta_init [2021-11-17 01:00:07,447 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2021-11-17 01:00:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2021-11-17 01:00:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-17 01:00:07,448 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-17 01:00:07,448 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_radio_control [2021-11-17 01:00:07,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_radio_control [2021-11-17 01:00:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 01:00:07,452 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 01:00:07,452 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_work [2021-11-17 01:00:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_work [2021-11-17 01:00:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_pervif_cmd [2021-11-17 01:00:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_pervif_cmd [2021-11-17 01:00:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 01:00:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 01:00:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_wake_queues [2021-11-17 01:00:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_wake_queues [2021-11-17 01:00:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-17 01:00:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-17 01:00:07,453 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-17 01:00:07,453 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-17 01:00:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_hw_reset [2021-11-17 01:00:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_hw_reset [2021-11-17 01:00:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bss_start [2021-11-17 01:00:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bss_start [2021-11-17 01:00:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 01:00:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 01:00:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_get_chandef_type [2021-11-17 01:00:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_get_chandef_type [2021-11-17 01:00:07,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 01:00:07,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 01:00:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_enable_bsses [2021-11-17 01:00:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_enable_bsses [2021-11-17 01:00:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_interrupt [2021-11-17 01:00:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_interrupt [2021-11-17 01:00:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-17 01:00:07,455 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-17 01:00:07,455 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 01:00:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 01:00:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-11-17 01:00:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-11-17 01:00:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_conf_tx [2021-11-17 01:00:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_conf_tx [2021-11-17 01:00:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_pre_scan [2021-11-17 01:00:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_pre_scan [2021-11-17 01:00:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data [2021-11-17 01:00:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data [2021-11-17 01:00:07,456 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_post_scan [2021-11-17 01:00:07,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_post_scan [2021-11-17 01:00:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_load_fw_image [2021-11-17 01:00:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_load_fw_image [2021-11-17 01:00:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_init_txqs [2021-11-17 01:00:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_init_txqs [2021-11-17 01:00:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_vif [2021-11-17 01:00:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_vif [2021-11-17 01:00:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-17 01:00:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-17 01:00:07,457 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-11-17 01:00:07,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-11-17 01:00:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_hweight32 [2021-11-17 01:00:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_hweight32 [2021-11-17 01:00:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 01:00:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 01:00:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-17 01:00:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-17 01:00:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_hdrlen [2021-11-17 01:00:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_hdrlen [2021-11-17 01:00:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_init_firmware [2021-11-17 01:00:07,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_init_firmware [2021-11-17 01:00:07,458 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-17 01:00:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-17 01:00:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_enable_sniffer [2021-11-17 01:00:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_enable_sniffer [2021-11-17 01:00:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 01:00:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 01:00:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-11-17 01:00:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-11-17 01:00:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-17 01:00:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-17 01:00:07,459 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bbp_reg_access [2021-11-17 01:00:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bbp_reg_access [2021-11-17 01:00:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 01:00:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 01:00:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-17 01:00:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-17 01:00:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-17 01:00:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-17 01:00:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_rf_antenna [2021-11-17 01:00:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_rf_antenna [2021-11-17 01:00:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_reload_firmware [2021-11-17 01:00:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_reload_firmware [2021-11-17 01:00:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-17 01:00:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-17 01:00:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 01:00:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_channel_to_frequency [2021-11-17 01:00:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_channel_to_frequency [2021-11-17 01:00:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 01:00:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-11-17 01:00:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-11-17 01:00:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_add_dma_header [2021-11-17 01:00:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_add_dma_header [2021-11-17 01:00:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_bss_info_changed [2021-11-17 01:00:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_bss_info_changed [2021-11-17 01:00:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_stream [2021-11-17 01:00:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_stream [2021-11-17 01:00:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sw_scan_complete [2021-11-17 01:00:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sw_scan_complete [2021-11-17 01:00:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_txq_reclaim [2021-11-17 01:00:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_txq_reclaim [2021-11-17 01:00:07,462 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_set_radio_preamble [2021-11-17 01:00:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_set_radio_preamble [2021-11-17 01:00:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_config [2021-11-17 01:00:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_config [2021-11-17 01:00:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 01:00:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 01:00:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 01:00:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2021-11-17 01:00:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2021-11-17 01:00:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_txq_deinit [2021-11-17 01:00:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_txq_deinit [2021-11-17 01:00:07,463 INFO L130 BoogieDeclarations]: Found specification of procedure rxq_refill [2021-11-17 01:00:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure rxq_refill [2021-11-17 01:00:07,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 01:00:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 01:00:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_sta_process [2021-11-17 01:00:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_sta_process [2021-11-17 01:00:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_fw_lock [2021-11-17 01:00:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_fw_lock [2021-11-17 01:00:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure __mwl8k_cmd_mac_multicast_adr [2021-11-17 01:00:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __mwl8k_cmd_mac_multicast_adr [2021-11-17 01:00:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_ap_init [2021-11-17 01:00:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_ap_init [2021-11-17 01:00:07,467 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-17 01:00:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-17 01:00:07,468 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-17 01:00:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-17 01:00:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_destroy_ba [2021-11-17 01:00:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_destroy_ba [2021-11-17 01:00:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_disable [2021-11-17 01:00:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_disable [2021-11-17 01:00:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-17 01:00:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-17 01:00:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-11-17 01:00:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-11-17 01:00:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sta_remove [2021-11-17 01:00:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sta_remove [2021-11-17 01:00:07,469 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_tx_start [2021-11-17 01:00:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_tx_start [2021-11-17 01:00:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_remove_dma_header [2021-11-17 01:00:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_remove_dma_header [2021-11-17 01:00:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_stop [2021-11-17 01:00:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_stop [2021-11-17 01:00:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_update_mac_addr [2021-11-17 01:00:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_update_mac_addr [2021-11-17 01:00:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 01:00:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 01:00:07,470 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2021-11-17 01:00:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2021-11-17 01:00:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 01:00:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-11-17 01:00:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-11-17 01:00:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 01:00:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 01:00:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure __ilog2_u32 [2021-11-17 01:00:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __ilog2_u32 [2021-11-17 01:00:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_stop_queues [2021-11-17 01:00:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_stop_queues [2021-11-17 01:00:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_encryption_set_cmd_info [2021-11-17 01:00:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_encryption_set_cmd_info [2021-11-17 01:00:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-17 01:00:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-17 01:00:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_sta_add [2021-11-17 01:00:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_sta_add [2021-11-17 01:00:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-17 01:00:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-17 01:00:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-17 01:00:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-17 01:00:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_mac_addr [2021-11-17 01:00:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_mac_addr [2021-11-17 01:00:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_add_interface [2021-11-17 01:00:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_add_interface [2021-11-17 01:00:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-11-17 01:00:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-11-17 01:00:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-17 01:00:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-17 01:00:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure legacy_rate_mask_to_array [2021-11-17 01:00:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure legacy_rate_mask_to_array [2021-11-17 01:00:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_ampdu_action [2021-11-17 01:00:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_ampdu_action [2021-11-17 01:00:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxd_sta_refill [2021-11-17 01:00:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxd_sta_refill [2021-11-17 01:00:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-11-17 01:00:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2021-11-17 01:00:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-17 01:00:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-17 01:00:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-17 01:00:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-17 01:00:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_release_fw [2021-11-17 01:00:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_release_fw [2021-11-17 01:00:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_rxq_deinit [2021-11-17 01:00:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_rxq_deinit [2021-11-17 01:00:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-17 01:00:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-17 01:00:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_send_fw_load_cmd [2021-11-17 01:00:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_send_fw_load_cmd [2021-11-17 01:00:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-17 01:00:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-17 01:00:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 01:00:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_set_new_stn_del [2021-11-17 01:00:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_set_new_stn_del [2021-11-17 01:00:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_cmd [2021-11-17 01:00:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_cmd [2021-11-17 01:00:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_lookup_stream [2021-11-17 01:00:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_lookup_stream [2021-11-17 01:00:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u8 [2021-11-17 01:00:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-17 01:00:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-17 01:00:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_enable [2021-11-17 01:00:07,476 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_enable [2021-11-17 01:00:08,494 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 01:00:08,497 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 01:00:12,295 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 01:00:22,002 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 01:00:22,030 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 01:00:22,030 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-17 01:00:22,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:00:22 BoogieIcfgContainer [2021-11-17 01:00:22,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 01:00:22,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 01:00:22,039 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 01:00:22,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 01:00:22,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 01:00:03" (1/3) ... [2021-11-17 01:00:22,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3feaa927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:00:22, skipping insertion in model container [2021-11-17 01:00:22,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 01:00:06" (2/3) ... [2021-11-17 01:00:22,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3feaa927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 01:00:22, skipping insertion in model container [2021-11-17 01:00:22,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 01:00:22" (3/3) ... [2021-11-17 01:00:22,045 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--mwl8k.ko-entry_point.cil.out.i [2021-11-17 01:00:22,050 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 01:00:22,051 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 01:00:22,108 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 01:00:22,116 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 01:00:22,116 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 01:00:22,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 3046 states, 2163 states have (on average 1.387424872861766) internal successors, (3001), 2233 states have internal predecessors, (3001), 722 states have call successors, (722), 160 states have call predecessors, (722), 159 states have return successors, (712), 702 states have call predecessors, (712), 712 states have call successors, (712) [2021-11-17 01:00:22,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-17 01:00:22,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:00:22,201 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:00:22,202 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:00:22,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:00:22,206 INFO L85 PathProgramCache]: Analyzing trace with hash -295509175, now seen corresponding path program 1 times [2021-11-17 01:00:22,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:00:22,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132506279] [2021-11-17 01:00:22,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:00:22,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:00:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:00:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:00:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:00:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:00:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:00:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:00:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:00:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:00:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:00:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:00:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:00:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:00:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:00:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:00:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:00:22,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:00:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:00:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:00:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:22,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:00:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:00:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:00:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:00:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:00:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:00:23,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 01:00:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 01:00:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 01:00:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 01:00:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 01:00:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:00:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:00:23,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2021-11-17 01:00:23,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:00:23,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132506279] [2021-11-17 01:00:23,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132506279] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:00:23,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:00:23,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 01:00:23,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601564811] [2021-11-17 01:00:23,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:00:23,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 01:00:23,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:00:23,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 01:00:23,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 01:00:23,179 INFO L87 Difference]: Start difference. First operand has 3046 states, 2163 states have (on average 1.387424872861766) internal successors, (3001), 2233 states have internal predecessors, (3001), 722 states have call successors, (722), 160 states have call predecessors, (722), 159 states have return successors, (712), 702 states have call predecessors, (712), 712 states have call successors, (712) Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-17 01:00:25,236 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:27,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:29,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:32,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:35,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:39,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:41,220 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:47,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:49,495 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:54,010 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:00:56,028 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:05,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:01:05,650 INFO L93 Difference]: Finished difference Result 10834 states and 16911 transitions. [2021-11-17 01:01:05,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 01:01:05,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 199 [2021-11-17 01:01:05,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:01:05,725 INFO L225 Difference]: With dead ends: 10834 [2021-11-17 01:01:05,725 INFO L226 Difference]: Without dead ends: 7733 [2021-11-17 01:01:05,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-17 01:01:05,762 INFO L933 BasicCegarLoop]: 4722 mSDtfsCounter, 10225 mSDsluCounter, 7103 mSDsCounter, 0 mSdLazyCounter, 6147 mSolverCounterSat, 5121 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10746 SdHoareTripleChecker+Valid, 11825 SdHoareTripleChecker+Invalid, 11279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5121 IncrementalHoareTripleChecker+Valid, 6147 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.3s IncrementalHoareTripleChecker+Time [2021-11-17 01:01:05,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10746 Valid, 11825 Invalid, 11279 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5121 Valid, 6147 Invalid, 11 Unknown, 0 Unchecked, 41.3s Time] [2021-11-17 01:01:05,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7733 states. [2021-11-17 01:01:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7733 to 5947. [2021-11-17 01:01:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5947 states, 4241 states have (on average 1.3791558594671067) internal successors, (5849), 4357 states have internal predecessors, (5849), 1389 states have call successors, (1389), 317 states have call predecessors, (1389), 316 states have return successors, (1388), 1368 states have call predecessors, (1388), 1388 states have call successors, (1388) [2021-11-17 01:01:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 8626 transitions. [2021-11-17 01:01:06,262 INFO L78 Accepts]: Start accepts. Automaton has 5947 states and 8626 transitions. Word has length 199 [2021-11-17 01:01:06,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:01:06,265 INFO L470 AbstractCegarLoop]: Abstraction has 5947 states and 8626 transitions. [2021-11-17 01:01:06,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-17 01:01:06,266 INFO L276 IsEmpty]: Start isEmpty. Operand 5947 states and 8626 transitions. [2021-11-17 01:01:06,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-17 01:01:06,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:01:06,272 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:01:06,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 01:01:06,272 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:01:06,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:01:06,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1626075355, now seen corresponding path program 1 times [2021-11-17 01:01:06,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:01:06,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397859747] [2021-11-17 01:01:06,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:01:06,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:01:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:01:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:01:06,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:01:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:01:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:01:06,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:01:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:01:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:01:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:01:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:01:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:01:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:01:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:01:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:01:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:01:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:01:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:01:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:01:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:01:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:01:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:01:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:01:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:01:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:01:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 01:01:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 01:01:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 01:01:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 01:01:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 01:01:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:01:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1096 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2021-11-17 01:01:06,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:01:06,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397859747] [2021-11-17 01:01:06,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397859747] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:01:06,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:01:06,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 01:01:06,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651481907] [2021-11-17 01:01:06,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:01:06,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 01:01:06,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:01:06,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 01:01:06,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:01:06,977 INFO L87 Difference]: Start difference. First operand 5947 states and 8626 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 01:01:09,027 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:11,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:17,213 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:19,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:21,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:23,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:29,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:31,679 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:33,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:35,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:53,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:01:53,089 INFO L93 Difference]: Finished difference Result 21274 states and 32156 transitions. [2021-11-17 01:01:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-17 01:01:53,091 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 202 [2021-11-17 01:01:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:01:53,190 INFO L225 Difference]: With dead ends: 21274 [2021-11-17 01:01:53,190 INFO L226 Difference]: Without dead ends: 15386 [2021-11-17 01:01:53,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:01:53,220 INFO L933 BasicCegarLoop]: 4760 mSDtfsCounter, 10174 mSDsluCounter, 15250 mSDsCounter, 0 mSdLazyCounter, 9328 mSolverCounterSat, 5122 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10702 SdHoareTripleChecker+Valid, 20010 SdHoareTripleChecker+Invalid, 14460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5122 IncrementalHoareTripleChecker+Valid, 9328 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.9s IncrementalHoareTripleChecker+Time [2021-11-17 01:01:53,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10702 Valid, 20010 Invalid, 14460 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5122 Valid, 9328 Invalid, 10 Unknown, 0 Unchecked, 44.9s Time] [2021-11-17 01:01:53,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15386 states. [2021-11-17 01:01:53,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15386 to 11872. [2021-11-17 01:01:53,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11872 states, 8480 states have (on average 1.380306603773585) internal successors, (11705), 8720 states have internal predecessors, (11705), 2749 states have call successors, (2749), 633 states have call predecessors, (2749), 642 states have return successors, (2818), 2710 states have call predecessors, (2818), 2748 states have call successors, (2818) [2021-11-17 01:01:53,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11872 states to 11872 states and 17272 transitions. [2021-11-17 01:01:53,732 INFO L78 Accepts]: Start accepts. Automaton has 11872 states and 17272 transitions. Word has length 202 [2021-11-17 01:01:53,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:01:53,734 INFO L470 AbstractCegarLoop]: Abstraction has 11872 states and 17272 transitions. [2021-11-17 01:01:53,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-17 01:01:53,735 INFO L276 IsEmpty]: Start isEmpty. Operand 11872 states and 17272 transitions. [2021-11-17 01:01:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-17 01:01:53,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:01:53,752 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 7, 7, 7, 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] [2021-11-17 01:01:53,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 01:01:53,754 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:01:53,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:01:53,755 INFO L85 PathProgramCache]: Analyzing trace with hash -304879233, now seen corresponding path program 1 times [2021-11-17 01:01:53,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:01:53,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996175824] [2021-11-17 01:01:53,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:01:53,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:01:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:53,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:01:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:53,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:01:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:01:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:53,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:01:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:53,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:01:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:53,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:01:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:01:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:01:54,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:01:54,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:01:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:01:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:01:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:01:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:01:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:01:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:01:54,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:01:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:01:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:01:54,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:01:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:01:54,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:01:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:01:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:01:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 01:01:54,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 01:01:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 01:01:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 01:01:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 01:01:54,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:01:54,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 01:01:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 01:01:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:01:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:01:54,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1099 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1096 trivial. 0 not checked. [2021-11-17 01:01:54,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:01:54,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996175824] [2021-11-17 01:01:54,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996175824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:01:54,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:01:54,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 01:01:54,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177101670] [2021-11-17 01:01:54,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:01:54,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 01:01:54,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:01:54,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 01:01:54,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:01:54,250 INFO L87 Difference]: Start difference. First operand 11872 states and 17272 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 01:01:56,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:01:58,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:00,350 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:05,579 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:07,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:09,625 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:15,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:17,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:19,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:31,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:02:31,934 INFO L93 Difference]: Finished difference Result 31796 states and 47363 transitions. [2021-11-17 01:02:31,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-17 01:02:31,935 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 238 [2021-11-17 01:02:31,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:02:32,039 INFO L225 Difference]: With dead ends: 31796 [2021-11-17 01:02:32,040 INFO L226 Difference]: Without dead ends: 19988 [2021-11-17 01:02:32,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-17 01:02:32,090 INFO L933 BasicCegarLoop]: 4502 mSDtfsCounter, 4985 mSDsluCounter, 6991 mSDsCounter, 0 mSdLazyCounter, 8513 mSolverCounterSat, 2933 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5287 SdHoareTripleChecker+Valid, 11493 SdHoareTripleChecker+Invalid, 11454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2933 IncrementalHoareTripleChecker+Valid, 8513 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2021-11-17 01:02:32,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5287 Valid, 11493 Invalid, 11454 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2933 Valid, 8513 Invalid, 8 Unknown, 0 Unchecked, 36.8s Time] [2021-11-17 01:02:32,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19988 states. [2021-11-17 01:02:32,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19988 to 15840. [2021-11-17 01:02:32,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15840 states, 11334 states have (on average 1.3722428092465149) internal successors, (15553), 11674 states have internal predecessors, (15553), 3523 states have call successors, (3523), 923 states have call predecessors, (3523), 982 states have return successors, (3890), 3512 states have call predecessors, (3890), 3522 states have call successors, (3890) [2021-11-17 01:02:32,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15840 states to 15840 states and 22966 transitions. [2021-11-17 01:02:32,765 INFO L78 Accepts]: Start accepts. Automaton has 15840 states and 22966 transitions. Word has length 238 [2021-11-17 01:02:32,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:02:32,766 INFO L470 AbstractCegarLoop]: Abstraction has 15840 states and 22966 transitions. [2021-11-17 01:02:32,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-17 01:02:32,766 INFO L276 IsEmpty]: Start isEmpty. Operand 15840 states and 22966 transitions. [2021-11-17 01:02:32,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-17 01:02:32,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:02:32,782 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:02:32,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 01:02:32,783 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:02:32,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:02:32,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1206045788, now seen corresponding path program 1 times [2021-11-17 01:02:32,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:02:32,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097955123] [2021-11-17 01:02:32,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:02:32,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:02:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:32,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:02:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:32,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:02:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:32,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:02:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:02:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:02:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:32,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:02:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:32,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:02:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:02:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:02:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:02:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:02:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:02:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:02:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:02:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:02:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:02:33,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:02:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:02:33,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:02:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:02:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:02:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:02:33,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:02:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:02:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 01:02:33,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 01:02:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 01:02:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 01:02:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 01:02:33,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:02:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 01:02:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 01:02:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 01:02:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 01:02:33,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 01:02:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 01:02:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:02:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:02:33,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1488 trivial. 0 not checked. [2021-11-17 01:02:33,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:02:33,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097955123] [2021-11-17 01:02:33,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097955123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:02:33,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:02:33,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 01:02:33,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715005028] [2021-11-17 01:02:33,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:02:33,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 01:02:33,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:02:33,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 01:02:33,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:02:33,274 INFO L87 Difference]: Start difference. First operand 15840 states and 22966 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 01:02:35,311 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:37,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:43,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:45,186 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:47,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:49,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:55,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:57,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:02:59,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:01,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:17,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:03:17,024 INFO L93 Difference]: Finished difference Result 50932 states and 76091 transitions. [2021-11-17 01:03:17,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-17 01:03:17,027 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 274 [2021-11-17 01:03:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:03:17,189 INFO L225 Difference]: With dead ends: 50932 [2021-11-17 01:03:17,189 INFO L226 Difference]: Without dead ends: 35156 [2021-11-17 01:03:17,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:03:17,243 INFO L933 BasicCegarLoop]: 6210 mSDtfsCounter, 11161 mSDsluCounter, 7453 mSDsCounter, 0 mSdLazyCounter, 8002 mSolverCounterSat, 6196 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11817 SdHoareTripleChecker+Valid, 13663 SdHoareTripleChecker+Invalid, 14208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6196 IncrementalHoareTripleChecker+Valid, 8002 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.4s IncrementalHoareTripleChecker+Time [2021-11-17 01:03:17,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11817 Valid, 13663 Invalid, 14208 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6196 Valid, 8002 Invalid, 10 Unknown, 0 Unchecked, 42.4s Time] [2021-11-17 01:03:17,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35156 states. [2021-11-17 01:03:18,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35156 to 27856. [2021-11-17 01:03:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27856 states, 19974 states have (on average 1.372133773906078) internal successors, (27407), 20582 states have internal predecessors, (27407), 6213 states have call successors, (6213), 1555 states have call predecessors, (6213), 1668 states have return successors, (6905), 6190 states have call predecessors, (6905), 6212 states have call successors, (6905) [2021-11-17 01:03:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27856 states to 27856 states and 40525 transitions. [2021-11-17 01:03:18,325 INFO L78 Accepts]: Start accepts. Automaton has 27856 states and 40525 transitions. Word has length 274 [2021-11-17 01:03:18,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:03:18,326 INFO L470 AbstractCegarLoop]: Abstraction has 27856 states and 40525 transitions. [2021-11-17 01:03:18,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (38), 5 states have call predecessors, (38), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 01:03:18,326 INFO L276 IsEmpty]: Start isEmpty. Operand 27856 states and 40525 transitions. [2021-11-17 01:03:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2021-11-17 01:03:18,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:03:18,341 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:03:18,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 01:03:18,341 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:03:18,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:03:18,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1161099994, now seen corresponding path program 1 times [2021-11-17 01:03:18,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:03:18,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425333183] [2021-11-17 01:03:18,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:03:18,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:03:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:03:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:03:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:03:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:03:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:03:18,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:03:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:03:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:03:18,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:03:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:03:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:03:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:03:18,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:03:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:03:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:03:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:03:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:03:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:03:18,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:03:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:03:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:03:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:03:18,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:03:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:03:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 01:03:18,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 01:03:18,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 01:03:18,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 01:03:18,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 01:03:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:03:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 01:03:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 01:03:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 01:03:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 01:03:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 01:03:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 01:03:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:03:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2021-11-17 01:03:18,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:03:18,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425333183] [2021-11-17 01:03:18,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425333183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:03:18,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:03:18,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 01:03:18,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132920390] [2021-11-17 01:03:18,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:03:18,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 01:03:18,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:03:18,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 01:03:18,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-17 01:03:19,068 INFO L87 Difference]: Start difference. First operand 27856 states and 40525 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2021-11-17 01:03:21,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:23,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:28,211 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:30,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:35,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:37,108 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:45,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:03:45,872 INFO L93 Difference]: Finished difference Result 49660 states and 74639 transitions. [2021-11-17 01:03:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 01:03:45,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 274 [2021-11-17 01:03:45,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:03:46,042 INFO L225 Difference]: With dead ends: 49660 [2021-11-17 01:03:46,043 INFO L226 Difference]: Without dead ends: 35156 [2021-11-17 01:03:46,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-17 01:03:46,096 INFO L933 BasicCegarLoop]: 4219 mSDtfsCounter, 5924 mSDsluCounter, 6228 mSDsCounter, 0 mSdLazyCounter, 5328 mSolverCounterSat, 4274 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6106 SdHoareTripleChecker+Valid, 10447 SdHoareTripleChecker+Invalid, 9608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4274 IncrementalHoareTripleChecker+Valid, 5328 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.7s IncrementalHoareTripleChecker+Time [2021-11-17 01:03:46,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6106 Valid, 10447 Invalid, 9608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4274 Valid, 5328 Invalid, 6 Unknown, 0 Unchecked, 25.7s Time] [2021-11-17 01:03:46,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35156 states. [2021-11-17 01:03:47,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35156 to 27868. [2021-11-17 01:03:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27868 states, 19986 states have (on average 1.3719103372360653) internal successors, (27419), 20594 states have internal predecessors, (27419), 6213 states have call successors, (6213), 1555 states have call predecessors, (6213), 1668 states have return successors, (6905), 6190 states have call predecessors, (6905), 6212 states have call successors, (6905) [2021-11-17 01:03:47,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27868 states to 27868 states and 40537 transitions. [2021-11-17 01:03:47,291 INFO L78 Accepts]: Start accepts. Automaton has 27868 states and 40537 transitions. Word has length 274 [2021-11-17 01:03:47,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:03:47,304 INFO L470 AbstractCegarLoop]: Abstraction has 27868 states and 40537 transitions. [2021-11-17 01:03:47,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2021-11-17 01:03:47,304 INFO L276 IsEmpty]: Start isEmpty. Operand 27868 states and 40537 transitions. [2021-11-17 01:03:47,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-17 01:03:47,317 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:03:47,318 INFO L514 BasicCegarLoop]: trace histogram [27, 27, 27, 7, 7, 7, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:03:47,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 01:03:47,318 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:03:47,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:03:47,318 INFO L85 PathProgramCache]: Analyzing trace with hash 94580345, now seen corresponding path program 1 times [2021-11-17 01:03:47,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:03:47,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405130719] [2021-11-17 01:03:47,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:03:47,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:03:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:03:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:03:47,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:03:47,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:03:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:03:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:03:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:03:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:03:47,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:03:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:03:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:03:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:03:47,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:03:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:03:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:03:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:03:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:03:47,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:03:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:03:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:03:47,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:03:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:03:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:03:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:03:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 01:03:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 01:03:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 01:03:47,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 01:03:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 01:03:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:03:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 01:03:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 01:03:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 01:03:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 01:03:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 01:03:47,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 01:03:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:03:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:03:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1501 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1491 trivial. 0 not checked. [2021-11-17 01:03:47,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:03:47,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405130719] [2021-11-17 01:03:47,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405130719] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:03:47,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:03:47,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 01:03:47,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701957961] [2021-11-17 01:03:47,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:03:47,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 01:03:47,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:03:47,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 01:03:47,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-11-17 01:03:47,971 INFO L87 Difference]: Start difference. First operand 27868 states and 40537 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 01:03:50,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:52,074 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:03:59,753 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:01,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:09,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:11,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:28,770 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:34,995 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:42,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:44,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:46,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:54,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:56,929 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:04:58,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:05:11,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:05:11,688 INFO L93 Difference]: Finished difference Result 72378 states and 107865 transitions. [2021-11-17 01:05:11,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-17 01:05:11,689 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) Word has length 276 [2021-11-17 01:05:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:05:11,975 INFO L225 Difference]: With dead ends: 72378 [2021-11-17 01:05:11,975 INFO L226 Difference]: Without dead ends: 44574 [2021-11-17 01:05:12,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-11-17 01:05:12,079 INFO L933 BasicCegarLoop]: 5666 mSDtfsCounter, 12786 mSDsluCounter, 9210 mSDsCounter, 0 mSdLazyCounter, 38407 mSolverCounterSat, 7051 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14106 SdHoareTripleChecker+Valid, 14876 SdHoareTripleChecker+Invalid, 45472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7051 IncrementalHoareTripleChecker+Valid, 38407 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 81.2s IncrementalHoareTripleChecker+Time [2021-11-17 01:05:12,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14106 Valid, 14876 Invalid, 45472 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7051 Valid, 38407 Invalid, 14 Unknown, 0 Unchecked, 81.2s Time] [2021-11-17 01:05:12,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44574 states. [2021-11-17 01:05:13,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44574 to 33940. [2021-11-17 01:05:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33940 states, 24206 states have (on average 1.3597042055688673) internal successors, (32913), 24872 states have internal predecessors, (32913), 7693 states have call successors, (7693), 1981 states have call predecessors, (7693), 2040 states have return successors, (7992), 7620 states have call predecessors, (7992), 7692 states have call successors, (7992) [2021-11-17 01:05:13,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33940 states to 33940 states and 48598 transitions. [2021-11-17 01:05:13,444 INFO L78 Accepts]: Start accepts. Automaton has 33940 states and 48598 transitions. Word has length 276 [2021-11-17 01:05:13,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:05:13,445 INFO L470 AbstractCegarLoop]: Abstraction has 33940 states and 48598 transitions. [2021-11-17 01:05:13,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (38), 5 states have call predecessors, (38), 2 states have return successors, (37), 4 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-17 01:05:13,445 INFO L276 IsEmpty]: Start isEmpty. Operand 33940 states and 48598 transitions. [2021-11-17 01:05:13,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-11-17 01:05:13,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:05:13,619 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 7, 7, 7, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:05:13,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 01:05:13,619 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:05:13,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:05:13,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1991940677, now seen corresponding path program 1 times [2021-11-17 01:05:13,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:05:13,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497495574] [2021-11-17 01:05:13,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:13,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:05:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:05:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-17 01:05:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 01:05:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-17 01:05:13,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-17 01:05:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-17 01:05:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-17 01:05:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-11-17 01:05:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-11-17 01:05:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-11-17 01:05:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:05:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-11-17 01:05:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:05:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 01:05:13,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:13,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 01:05:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-11-17 01:05:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-11-17 01:05:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-17 01:05:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 01:05:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 01:05:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-17 01:05:14,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 01:05:14,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-11-17 01:05:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 01:05:14,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 01:05:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2021-11-17 01:05:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 01:05:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-11-17 01:05:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-17 01:05:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 01:05:14,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 01:05:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-17 01:05:14,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-11-17 01:05:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-17 01:05:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-17 01:05:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 01:05:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 01:05:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:05:14,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 01:05:14,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 01:05:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-17 01:05:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 01:05:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-17 01:05:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:05:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-17 01:05:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:05:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-17 01:05:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2021-11-17 01:05:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:05:14,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:05:14,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 01:05:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 01:05:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-17 01:05:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-17 01:05:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-17 01:05:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 01:05:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:05:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-17 01:05:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-17 01:05:14,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:05:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 01:05:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-11-17 01:05:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 01:05:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 01:05:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 01:05:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-17 01:05:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:14,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1659 trivial. 0 not checked. [2021-11-17 01:05:14,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:05:14,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497495574] [2021-11-17 01:05:14,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497495574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:05:14,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:05:14,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-17 01:05:14,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307972709] [2021-11-17 01:05:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:05:14,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-17 01:05:14,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:05:14,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-17 01:05:14,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-17 01:05:14,716 INFO L87 Difference]: Start difference. First operand 33940 states and 48598 transitions. Second operand has 11 states, 11 states have (on average 20.727272727272727) internal successors, (228), 4 states have internal predecessors, (228), 2 states have call successors, (63), 9 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-17 01:05:16,752 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:05:22,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:05:27,772 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 01:05:37,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:05:37,674 INFO L93 Difference]: Finished difference Result 78176 states and 115586 transitions. [2021-11-17 01:05:37,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 01:05:37,675 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 20.727272727272727) internal successors, (228), 4 states have internal predecessors, (228), 2 states have call successors, (63), 9 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 490 [2021-11-17 01:05:37,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:05:37,914 INFO L225 Difference]: With dead ends: 78176 [2021-11-17 01:05:37,914 INFO L226 Difference]: Without dead ends: 44300 [2021-11-17 01:05:38,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:05:38,044 INFO L933 BasicCegarLoop]: 4185 mSDtfsCounter, 7010 mSDsluCounter, 9467 mSDsCounter, 0 mSdLazyCounter, 7379 mSolverCounterSat, 5278 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7188 SdHoareTripleChecker+Valid, 13652 SdHoareTripleChecker+Invalid, 12660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5278 IncrementalHoareTripleChecker+Valid, 7379 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2021-11-17 01:05:38,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7188 Valid, 13652 Invalid, 12660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5278 Valid, 7379 Invalid, 3 Unknown, 0 Unchecked, 20.9s Time] [2021-11-17 01:05:38,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44300 states. [2021-11-17 01:05:39,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44300 to 33980. [2021-11-17 01:05:39,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33980 states, 24238 states have (on average 1.3592293093489562) internal successors, (32945), 24908 states have internal predecessors, (32945), 7697 states have call successors, (7697), 1981 states have call predecessors, (7697), 2044 states have return successors, (8000), 7624 states have call predecessors, (8000), 7696 states have call successors, (8000) [2021-11-17 01:05:39,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33980 states to 33980 states and 48642 transitions. [2021-11-17 01:05:39,725 INFO L78 Accepts]: Start accepts. Automaton has 33980 states and 48642 transitions. Word has length 490 [2021-11-17 01:05:39,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:05:39,726 INFO L470 AbstractCegarLoop]: Abstraction has 33980 states and 48642 transitions. [2021-11-17 01:05:39,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 20.727272727272727) internal successors, (228), 4 states have internal predecessors, (228), 2 states have call successors, (63), 9 states have call predecessors, (63), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2021-11-17 01:05:39,726 INFO L276 IsEmpty]: Start isEmpty. Operand 33980 states and 48642 transitions. [2021-11-17 01:05:39,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-11-17 01:05:39,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:05:39,780 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:05:39,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 01:05:39,780 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:05:39,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:05:39,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1881546645, now seen corresponding path program 1 times [2021-11-17 01:05:39,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:05:39,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595766977] [2021-11-17 01:05:39,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:39,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:05:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:39,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:05:39,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595766977] [2021-11-17 01:05:39,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-17 01:05:39,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881630812] [2021-11-17 01:05:39,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:39,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:05:39,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:05:39,946 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:05:39,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 01:05:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:41,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 5684 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:05:41,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:05:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 1697 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 1546 trivial. 0 not checked. [2021-11-17 01:05:41,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:05:41,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881630812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:05:41,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:05:41,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-17 01:05:41,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945599615] [2021-11-17 01:05:41,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:05:41,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:05:41,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:05:41,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:05:41,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:05:41,896 INFO L87 Difference]: Start difference. First operand 33980 states and 48642 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-17 01:05:43,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:05:43,155 INFO L93 Difference]: Finished difference Result 67992 states and 97450 transitions. [2021-11-17 01:05:43,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:05:43,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 505 [2021-11-17 01:05:43,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:05:43,299 INFO L225 Difference]: With dead ends: 67992 [2021-11-17 01:05:43,299 INFO L226 Difference]: Without dead ends: 34076 [2021-11-17 01:05:43,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:05:43,399 INFO L933 BasicCegarLoop]: 4373 mSDtfsCounter, 7 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 8741 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:05:43,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 8741 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 01:05:43,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34076 states. [2021-11-17 01:05:44,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34076 to 33992. [2021-11-17 01:05:44,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33992 states, 24250 states have (on average 1.3590515463917525) internal successors, (32957), 24920 states have internal predecessors, (32957), 7697 states have call successors, (7697), 1981 states have call predecessors, (7697), 2044 states have return successors, (8000), 7624 states have call predecessors, (8000), 7696 states have call successors, (8000) [2021-11-17 01:05:44,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33992 states to 33992 states and 48654 transitions. [2021-11-17 01:05:44,868 INFO L78 Accepts]: Start accepts. Automaton has 33992 states and 48654 transitions. Word has length 505 [2021-11-17 01:05:44,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:05:44,870 INFO L470 AbstractCegarLoop]: Abstraction has 33992 states and 48654 transitions. [2021-11-17 01:05:44,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 2 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2021-11-17 01:05:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 33992 states and 48654 transitions. [2021-11-17 01:05:44,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2021-11-17 01:05:44,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:05:44,918 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:05:44,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-17 01:05:45,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:05:45,128 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:05:45,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:05:45,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1740397431, now seen corresponding path program 1 times [2021-11-17 01:05:45,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:05:45,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100147602] [2021-11-17 01:05:45,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:45,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:05:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:45,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:05:45,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100147602] [2021-11-17 01:05:45,327 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-17 01:05:45,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175623409] [2021-11-17 01:05:45,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:45,328 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:05:45,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:05:45,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:05:45,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 01:05:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:46,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 5755 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:05:46,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:05:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2021-11-17 01:05:47,303 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:05:47,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175623409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:05:47,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:05:47,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-17 01:05:47,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048842679] [2021-11-17 01:05:47,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:05:47,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:05:47,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:05:47,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:05:47,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:05:47,305 INFO L87 Difference]: Start difference. First operand 33992 states and 48654 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-17 01:05:48,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:05:48,761 INFO L93 Difference]: Finished difference Result 67984 states and 97390 transitions. [2021-11-17 01:05:48,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:05:48,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 515 [2021-11-17 01:05:48,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:05:48,911 INFO L225 Difference]: With dead ends: 67984 [2021-11-17 01:05:48,911 INFO L226 Difference]: Without dead ends: 34056 [2021-11-17 01:05:49,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:05:49,015 INFO L933 BasicCegarLoop]: 4373 mSDtfsCounter, 1 mSDsluCounter, 4369 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8742 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:05:49,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 8742 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 01:05:49,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34056 states. [2021-11-17 01:05:50,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34056 to 34024. [2021-11-17 01:05:50,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34024 states, 24282 states have (on average 1.3585783708096533) internal successors, (32989), 24952 states have internal predecessors, (32989), 7697 states have call successors, (7697), 1981 states have call predecessors, (7697), 2044 states have return successors, (8000), 7624 states have call predecessors, (8000), 7696 states have call successors, (8000) [2021-11-17 01:05:50,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34024 states to 34024 states and 48686 transitions. [2021-11-17 01:05:50,443 INFO L78 Accepts]: Start accepts. Automaton has 34024 states and 48686 transitions. Word has length 515 [2021-11-17 01:05:50,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:05:50,444 INFO L470 AbstractCegarLoop]: Abstraction has 34024 states and 48686 transitions. [2021-11-17 01:05:50,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 2 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2021-11-17 01:05:50,444 INFO L276 IsEmpty]: Start isEmpty. Operand 34024 states and 48686 transitions. [2021-11-17 01:05:50,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2021-11-17 01:05:50,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:05:50,492 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:05:50,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-17 01:05:50,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-17 01:05:50,712 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:05:50,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:05:50,712 INFO L85 PathProgramCache]: Analyzing trace with hash -760978935, now seen corresponding path program 1 times [2021-11-17 01:05:50,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:05:50,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263782013] [2021-11-17 01:05:50,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:50,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:05:50,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:50,876 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:05:50,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263782013] [2021-11-17 01:05:50,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-11-17 01:05:50,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136223324] [2021-11-17 01:05:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:50,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:05:50,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:05:50,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:05:50,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-17 01:05:51,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:52,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 5813 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 01:05:52,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:05:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1700 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2021-11-17 01:05:52,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:05:53,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1700 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1688 trivial. 0 not checked. [2021-11-17 01:05:53,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136223324] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:05:53,789 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:05:53,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-17 01:05:53,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946272978] [2021-11-17 01:05:53,789 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:05:53,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:05:53,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:05:53,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:05:53,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:05:53,791 INFO L87 Difference]: Start difference. First operand 34024 states and 48686 transitions. Second operand has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87) [2021-11-17 01:05:55,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:05:55,398 INFO L93 Difference]: Finished difference Result 68208 states and 97694 transitions. [2021-11-17 01:05:55,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 01:05:55,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87) Word has length 526 [2021-11-17 01:05:55,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:05:55,556 INFO L225 Difference]: With dead ends: 68208 [2021-11-17 01:05:55,556 INFO L226 Difference]: Without dead ends: 34248 [2021-11-17 01:05:55,662 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 1046 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:05:55,666 INFO L933 BasicCegarLoop]: 4376 mSDtfsCounter, 4 mSDsluCounter, 8740 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13116 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:05:55,667 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 13116 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 01:05:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34248 states. [2021-11-17 01:05:56,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34248 to 34216. [2021-11-17 01:05:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34216 states, 24426 states have (on average 1.3564644231556537) internal successors, (33133), 25096 states have internal predecessors, (33133), 7745 states have call successors, (7745), 1981 states have call predecessors, (7745), 2044 states have return successors, (8048), 7672 states have call predecessors, (8048), 7744 states have call successors, (8048) [2021-11-17 01:05:57,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34216 states to 34216 states and 48926 transitions. [2021-11-17 01:05:57,136 INFO L78 Accepts]: Start accepts. Automaton has 34216 states and 48926 transitions. Word has length 526 [2021-11-17 01:05:57,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:05:57,136 INFO L470 AbstractCegarLoop]: Abstraction has 34216 states and 48926 transitions. [2021-11-17 01:05:57,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.833333333333336) internal successors, (365), 6 states have internal predecessors, (365), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87) [2021-11-17 01:05:57,137 INFO L276 IsEmpty]: Start isEmpty. Operand 34216 states and 48926 transitions. [2021-11-17 01:05:57,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2021-11-17 01:05:57,183 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:05:57,183 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:05:57,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-17 01:05:57,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:05:57,386 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:05:57,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:05:57,387 INFO L85 PathProgramCache]: Analyzing trace with hash 824183085, now seen corresponding path program 1 times [2021-11-17 01:05:57,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:05:57,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271726523] [2021-11-17 01:05:57,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:57,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:05:57,621 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 01:05:57,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137947092] [2021-11-17 01:05:57,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:05:57,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:05:57,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:05:57,623 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:05:57,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-17 01:05:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:05:58,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 5979 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:05:58,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:05:59,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1766 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1604 trivial. 0 not checked. [2021-11-17 01:05:59,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:05:59,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:05:59,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271726523] [2021-11-17 01:05:59,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 01:05:59,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137947092] [2021-11-17 01:05:59,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137947092] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:05:59,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:05:59,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-17 01:05:59,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002840219] [2021-11-17 01:05:59,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:05:59,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:05:59,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:05:59,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:05:59,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:05:59,485 INFO L87 Difference]: Start difference. First operand 34216 states and 48926 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-17 01:06:00,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:06:00,691 INFO L93 Difference]: Finished difference Result 68544 states and 98094 transitions. [2021-11-17 01:06:00,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:06:00,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 555 [2021-11-17 01:06:00,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:06:00,925 INFO L225 Difference]: With dead ends: 68544 [2021-11-17 01:06:00,925 INFO L226 Difference]: Without dead ends: 34392 [2021-11-17 01:06:01,015 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:06:01,015 INFO L933 BasicCegarLoop]: 4376 mSDtfsCounter, 6 mSDsluCounter, 4367 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8743 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:06:01,016 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 8743 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 01:06:01,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34392 states. [2021-11-17 01:06:02,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34392 to 34264. [2021-11-17 01:06:02,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34264 states, 24474 states have (on average 1.355765301953093) internal successors, (33181), 25144 states have internal predecessors, (33181), 7745 states have call successors, (7745), 1981 states have call predecessors, (7745), 2044 states have return successors, (8048), 7672 states have call predecessors, (8048), 7744 states have call successors, (8048) [2021-11-17 01:06:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34264 states to 34264 states and 48974 transitions. [2021-11-17 01:06:02,469 INFO L78 Accepts]: Start accepts. Automaton has 34264 states and 48974 transitions. Word has length 555 [2021-11-17 01:06:02,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:06:02,470 INFO L470 AbstractCegarLoop]: Abstraction has 34264 states and 48974 transitions. [2021-11-17 01:06:02,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 2 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2021-11-17 01:06:02,470 INFO L276 IsEmpty]: Start isEmpty. Operand 34264 states and 48974 transitions. [2021-11-17 01:06:02,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2021-11-17 01:06:02,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:06:02,519 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:06:02,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-17 01:06:02,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:06:02,736 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:06:02,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:06:02,736 INFO L85 PathProgramCache]: Analyzing trace with hash -971254696, now seen corresponding path program 1 times [2021-11-17 01:06:02,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:06:02,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534163177] [2021-11-17 01:06:02,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:02,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:06:02,949 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 01:06:02,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218946863] [2021-11-17 01:06:02,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:02,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:06:02,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:06:02,951 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:06:02,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-17 01:06:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:06:04,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 6024 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 01:06:04,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:06:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1768 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 1604 trivial. 0 not checked. [2021-11-17 01:06:04,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:06:05,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1768 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1756 trivial. 0 not checked. [2021-11-17 01:06:05,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:06:05,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534163177] [2021-11-17 01:06:05,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 01:06:05,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218946863] [2021-11-17 01:06:05,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218946863] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:06:05,782 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:06:05,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-17 01:06:05,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033538692] [2021-11-17 01:06:05,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:06:05,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:06:05,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:06:05,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:06:05,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:06:05,784 INFO L87 Difference]: Start difference. First operand 34264 states and 48974 transitions. Second operand has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 6 states have internal predecessors, (370), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87) [2021-11-17 01:06:07,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:06:07,138 INFO L93 Difference]: Finished difference Result 69072 states and 98870 transitions. [2021-11-17 01:06:07,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 01:06:07,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 6 states have internal predecessors, (370), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87) Word has length 564 [2021-11-17 01:06:07,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:06:07,384 INFO L225 Difference]: With dead ends: 69072 [2021-11-17 01:06:07,384 INFO L226 Difference]: Without dead ends: 34872 [2021-11-17 01:06:07,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1126 GetRequests, 1122 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:06:07,473 INFO L933 BasicCegarLoop]: 4381 mSDtfsCounter, 34 mSDsluCounter, 8742 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 13123 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:06:07,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 13123 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:06:07,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34872 states. [2021-11-17 01:06:08,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34872 to 34648. [2021-11-17 01:06:08,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34648 states, 24762 states have (on average 1.3535659478232775) internal successors, (33517), 25432 states have internal predecessors, (33517), 7841 states have call successors, (7841), 1981 states have call predecessors, (7841), 2044 states have return successors, (8144), 7768 states have call predecessors, (8144), 7840 states have call successors, (8144) [2021-11-17 01:06:08,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34648 states to 34648 states and 49502 transitions. [2021-11-17 01:06:08,872 INFO L78 Accepts]: Start accepts. Automaton has 34648 states and 49502 transitions. Word has length 564 [2021-11-17 01:06:08,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:06:08,872 INFO L470 AbstractCegarLoop]: Abstraction has 34648 states and 49502 transitions. [2021-11-17 01:06:08,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 61.666666666666664) internal successors, (370), 6 states have internal predecessors, (370), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87) [2021-11-17 01:06:08,873 INFO L276 IsEmpty]: Start isEmpty. Operand 34648 states and 49502 transitions. [2021-11-17 01:06:08,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2021-11-17 01:06:08,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:06:08,917 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:06:08,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-17 01:06:09,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-17 01:06:09,119 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:06:09,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:06:09,120 INFO L85 PathProgramCache]: Analyzing trace with hash 43298100, now seen corresponding path program 2 times [2021-11-17 01:06:09,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:06:09,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172583123] [2021-11-17 01:06:09,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:09,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:06:09,223 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 01:06:09,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [5774517] [2021-11-17 01:06:09,223 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 01:06:09,224 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:06:09,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:06:09,225 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:06:09,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-17 01:06:10,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-17 01:06:10,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 01:06:10,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 3176 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-17 01:06:10,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:06:10,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1822 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 1779 trivial. 0 not checked. [2021-11-17 01:06:10,964 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:06:10,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:06:10,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172583123] [2021-11-17 01:06:10,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 01:06:10,965 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5774517] [2021-11-17 01:06:10,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5774517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:06:10,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:06:10,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-17 01:06:10,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005982288] [2021-11-17 01:06:10,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:06:10,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-17 01:06:10,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:06:10,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-17 01:06:10,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:06:10,966 INFO L87 Difference]: Start difference. First operand 34648 states and 49502 transitions. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-17 01:06:12,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:06:12,244 INFO L93 Difference]: Finished difference Result 69520 states and 99502 transitions. [2021-11-17 01:06:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-17 01:06:12,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 588 [2021-11-17 01:06:12,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:06:12,392 INFO L225 Difference]: With dead ends: 69520 [2021-11-17 01:06:12,392 INFO L226 Difference]: Without dead ends: 34936 [2021-11-17 01:06:12,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-17 01:06:12,503 INFO L933 BasicCegarLoop]: 4375 mSDtfsCounter, 21 mSDsluCounter, 4368 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8743 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:06:12,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 8743 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 01:06:12,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34936 states. [2021-11-17 01:06:13,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34936 to 34672. [2021-11-17 01:06:13,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34672 states, 24786 states have (on average 1.3532235939643347) internal successors, (33541), 25456 states have internal predecessors, (33541), 7841 states have call successors, (7841), 1981 states have call predecessors, (7841), 2044 states have return successors, (8144), 7768 states have call predecessors, (8144), 7840 states have call successors, (8144) [2021-11-17 01:06:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34672 states to 34672 states and 49526 transitions. [2021-11-17 01:06:14,065 INFO L78 Accepts]: Start accepts. Automaton has 34672 states and 49526 transitions. Word has length 588 [2021-11-17 01:06:14,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:06:14,066 INFO L470 AbstractCegarLoop]: Abstraction has 34672 states and 49526 transitions. [2021-11-17 01:06:14,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2021-11-17 01:06:14,066 INFO L276 IsEmpty]: Start isEmpty. Operand 34672 states and 49526 transitions. [2021-11-17 01:06:14,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2021-11-17 01:06:14,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:06:14,117 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 9, 9, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:06:14,142 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-17 01:06:14,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:06:14,318 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:06:14,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:06:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1124330018, now seen corresponding path program 1 times [2021-11-17 01:06:14,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:06:14,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629105602] [2021-11-17 01:06:14,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:14,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:06:14,402 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 01:06:14,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658275949] [2021-11-17 01:06:14,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:14,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:06:14,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:06:14,404 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:06:14,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-17 01:06:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:06:15,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 6351 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-17 01:06:15,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:06:16,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 187 proven. 1 refuted. 0 times theorem prover too weak. 1712 trivial. 0 not checked. [2021-11-17 01:06:16,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:06:17,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1889 trivial. 0 not checked. [2021-11-17 01:06:17,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:06:17,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629105602] [2021-11-17 01:06:17,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 01:06:17,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658275949] [2021-11-17 01:06:17,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658275949] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:06:17,652 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:06:17,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-17 01:06:17,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493018212] [2021-11-17 01:06:17,652 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:06:17,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 01:06:17,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:06:17,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 01:06:17,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:06:17,654 INFO L87 Difference]: Start difference. First operand 34672 states and 49526 transitions. Second operand has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87) [2021-11-17 01:06:19,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:06:19,023 INFO L93 Difference]: Finished difference Result 69568 states and 99530 transitions. [2021-11-17 01:06:19,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-17 01:06:19,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87) Word has length 616 [2021-11-17 01:06:19,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:06:19,170 INFO L225 Difference]: With dead ends: 69568 [2021-11-17 01:06:19,170 INFO L226 Difference]: Without dead ends: 34960 [2021-11-17 01:06:19,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1230 GetRequests, 1226 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-17 01:06:19,284 INFO L933 BasicCegarLoop]: 4377 mSDtfsCounter, 28 mSDsluCounter, 17459 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 21836 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:06:19,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 21836 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:06:19,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34960 states. [2021-11-17 01:06:20,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34960 to 34960. [2021-11-17 01:06:20,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34960 states, 25002 states have (on average 1.3530517558595312) internal successors, (33829), 25708 states have internal predecessors, (33829), 7913 states have call successors, (7913), 1981 states have call predecessors, (7913), 2044 states have return successors, (8216), 7804 states have call predecessors, (8216), 7912 states have call successors, (8216) [2021-11-17 01:06:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34960 states to 34960 states and 49958 transitions. [2021-11-17 01:06:20,817 INFO L78 Accepts]: Start accepts. Automaton has 34960 states and 49958 transitions. Word has length 616 [2021-11-17 01:06:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:06:20,817 INFO L470 AbstractCegarLoop]: Abstraction has 34960 states and 49958 transitions. [2021-11-17 01:06:20,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.166666666666664) internal successors, (313), 6 states have internal predecessors, (313), 4 states have call successors, (88), 2 states have call predecessors, (88), 2 states have return successors, (87), 4 states have call predecessors, (87), 4 states have call successors, (87) [2021-11-17 01:06:20,818 INFO L276 IsEmpty]: Start isEmpty. Operand 34960 states and 49958 transitions. [2021-11-17 01:06:20,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 646 [2021-11-17 01:06:20,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:06:20,866 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 9, 9, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:06:20,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-17 01:06:21,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:06:21,069 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:06:21,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:06:21,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1695112195, now seen corresponding path program 1 times [2021-11-17 01:06:21,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:06:21,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065313225] [2021-11-17 01:06:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:21,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:06:21,160 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 01:06:21,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1578413773] [2021-11-17 01:06:21,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:21,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:06:21,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:06:21,162 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:06:21,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-17 01:06:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:06:22,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 6562 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-17 01:06:22,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:06:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1963 backedges. 187 proven. 46 refuted. 0 times theorem prover too weak. 1730 trivial. 0 not checked. [2021-11-17 01:06:23,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:06:24,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1963 backedges. 10 proven. 46 refuted. 0 times theorem prover too weak. 1907 trivial. 0 not checked. [2021-11-17 01:06:24,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:06:24,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065313225] [2021-11-17 01:06:24,303 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 01:06:24,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578413773] [2021-11-17 01:06:24,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578413773] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:06:24,303 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:06:24,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-17 01:06:24,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599616427] [2021-11-17 01:06:24,304 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:06:24,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-17 01:06:24,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:06:24,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-17 01:06:24,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:06:24,305 INFO L87 Difference]: Start difference. First operand 34960 states and 49958 transitions. Second operand has 12 states, 12 states have (on average 29.0) internal successors, (348), 12 states have internal predecessors, (348), 10 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (93), 10 states have call predecessors, (93), 10 states have call successors, (93) [2021-11-17 01:06:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:06:25,813 INFO L93 Difference]: Finished difference Result 70432 states and 100862 transitions. [2021-11-17 01:06:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 01:06:25,813 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 29.0) internal successors, (348), 12 states have internal predecessors, (348), 10 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (93), 10 states have call predecessors, (93), 10 states have call successors, (93) Word has length 645 [2021-11-17 01:06:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:06:25,950 INFO L225 Difference]: With dead ends: 70432 [2021-11-17 01:06:25,951 INFO L226 Difference]: Without dead ends: 35536 [2021-11-17 01:06:26,045 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1288 GetRequests, 1278 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-17 01:06:26,046 INFO L933 BasicCegarLoop]: 4389 mSDtfsCounter, 125 mSDsluCounter, 8767 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 13156 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 01:06:26,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 13156 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 01:06:26,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35536 states. [2021-11-17 01:06:27,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35536 to 35536. [2021-11-17 01:06:27,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35536 states, 25434 states have (on average 1.3527168357316977) internal successors, (34405), 26212 states have internal predecessors, (34405), 8057 states have call successors, (8057), 1981 states have call predecessors, (8057), 2044 states have return successors, (8360), 7876 states have call predecessors, (8360), 8056 states have call successors, (8360) [2021-11-17 01:06:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35536 states to 35536 states and 50822 transitions. [2021-11-17 01:06:27,404 INFO L78 Accepts]: Start accepts. Automaton has 35536 states and 50822 transitions. Word has length 645 [2021-11-17 01:06:27,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:06:27,405 INFO L470 AbstractCegarLoop]: Abstraction has 35536 states and 50822 transitions. [2021-11-17 01:06:27,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 29.0) internal successors, (348), 12 states have internal predecessors, (348), 10 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (93), 10 states have call predecessors, (93), 10 states have call successors, (93) [2021-11-17 01:06:27,405 INFO L276 IsEmpty]: Start isEmpty. Operand 35536 states and 50822 transitions. [2021-11-17 01:06:27,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 706 [2021-11-17 01:06:27,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:06:27,455 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 28, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:06:27,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-17 01:06:27,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-17 01:06:27,656 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:06:27,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:06:27,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1367238843, now seen corresponding path program 2 times [2021-11-17 01:06:27,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:06:27,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783344745] [2021-11-17 01:06:27,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:27,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:06:27,746 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 01:06:27,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [752867931] [2021-11-17 01:06:27,747 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-17 01:06:27,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:06:27,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:06:27,747 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:06:27,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-17 01:06:28,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-17 01:06:28,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-17 01:06:28,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 3081 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-17 01:06:28,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:06:29,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2359 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 2226 trivial. 0 not checked. [2021-11-17 01:06:29,638 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 01:06:29,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:06:29,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783344745] [2021-11-17 01:06:29,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 01:06:29,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752867931] [2021-11-17 01:06:29,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752867931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 01:06:29,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 01:06:29,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 01:06:29,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213209234] [2021-11-17 01:06:29,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 01:06:29,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 01:06:29,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:06:29,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 01:06:29,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 01:06:29,640 INFO L87 Difference]: Start difference. First operand 35536 states and 50822 transitions. Second operand has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (75), 3 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-17 01:06:31,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:06:31,019 INFO L93 Difference]: Finished difference Result 71084 states and 101867 transitions. [2021-11-17 01:06:31,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 01:06:31,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (75), 3 states have call predecessors, (75), 2 states have call successors, (75) Word has length 705 [2021-11-17 01:06:31,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:06:31,153 INFO L225 Difference]: With dead ends: 71084 [2021-11-17 01:06:31,153 INFO L226 Difference]: Without dead ends: 35612 [2021-11-17 01:06:31,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 01:06:31,259 INFO L933 BasicCegarLoop]: 4372 mSDtfsCounter, 2 mSDsluCounter, 13111 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 17483 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-17 01:06:31,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 17483 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-17 01:06:31,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35612 states. [2021-11-17 01:06:32,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35612 to 35592. [2021-11-17 01:06:32,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35592 states, 25474 states have (on average 1.3521629897150036) internal successors, (34445), 26256 states have internal predecessors, (34445), 8057 states have call successors, (8057), 1981 states have call predecessors, (8057), 2060 states have return successors, (8386), 7888 states have call predecessors, (8386), 8056 states have call successors, (8386) [2021-11-17 01:06:32,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35592 states to 35592 states and 50888 transitions. [2021-11-17 01:06:32,714 INFO L78 Accepts]: Start accepts. Automaton has 35592 states and 50888 transitions. Word has length 705 [2021-11-17 01:06:32,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 01:06:32,714 INFO L470 AbstractCegarLoop]: Abstraction has 35592 states and 50888 transitions. [2021-11-17 01:06:32,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.8) internal successors, (279), 4 states have internal predecessors, (279), 2 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (75), 3 states have call predecessors, (75), 2 states have call successors, (75) [2021-11-17 01:06:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 35592 states and 50888 transitions. [2021-11-17 01:06:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2021-11-17 01:06:32,762 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 01:06:32,762 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 27, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 8, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 01:06:32,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-17 01:06:32,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-17 01:06:32,976 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 01:06:32,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 01:06:32,976 INFO L85 PathProgramCache]: Analyzing trace with hash -607041768, now seen corresponding path program 1 times [2021-11-17 01:06:32,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 01:06:32,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639733650] [2021-11-17 01:06:32,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:32,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 01:06:33,064 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-17 01:06:33,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1317459385] [2021-11-17 01:06:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 01:06:33,065 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 01:06:33,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 01:06:33,066 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 01:06:33,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-17 01:06:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 01:06:34,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 7027 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-17 01:06:34,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 01:06:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2359 backedges. 187 proven. 325 refuted. 0 times theorem prover too weak. 1847 trivial. 0 not checked. [2021-11-17 01:06:35,354 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-17 01:06:36,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2359 backedges. 10 proven. 325 refuted. 0 times theorem prover too weak. 2024 trivial. 0 not checked. [2021-11-17 01:06:36,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 01:06:36,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639733650] [2021-11-17 01:06:36,864 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-17 01:06:36,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317459385] [2021-11-17 01:06:36,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317459385] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-17 01:06:36,864 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-17 01:06:36,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-11-17 01:06:36,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139744446] [2021-11-17 01:06:36,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-17 01:06:36,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-17 01:06:36,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 01:06:36,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-17 01:06:36,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-17 01:06:36,866 INFO L87 Difference]: Start difference. First operand 35592 states and 50888 transitions. Second operand has 24 states, 24 states have (on average 18.0) internal successors, (432), 24 states have internal predecessors, (432), 22 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (107), 22 states have call predecessors, (107), 22 states have call successors, (107) [2021-11-17 01:06:38,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 01:06:38,568 INFO L93 Difference]: Finished difference Result 72272 states and 103658 transitions. [2021-11-17 01:06:38,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-17 01:06:38,569 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 18.0) internal successors, (432), 24 states have internal predecessors, (432), 22 states have call successors, (108), 2 states have call predecessors, (108), 2 states have return successors, (107), 22 states have call predecessors, (107), 22 states have call successors, (107) Word has length 713 [2021-11-17 01:06:38,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 01:06:38,729 INFO L225 Difference]: With dead ends: 72272 [2021-11-17 01:06:38,729 INFO L226 Difference]: Without dead ends: 36744 [2021-11-17 01:06:38,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1424 GetRequests, 1402 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-17 01:06:38,842 INFO L933 BasicCegarLoop]: 4413 mSDtfsCounter, 285 mSDsluCounter, 13188 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 17601 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-17 01:06:38,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [309 Valid, 17601 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-17 01:06:38,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36744 states.