./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.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 c3e9b23fefd4aff564027293c77af69f71c45b79d0c58b8bd829ffe606e21709 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 13:05:55,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 13:05:55,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 13:05:55,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 13:05:55,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 13:05:55,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 13:05:55,229 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 13:05:55,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 13:05:55,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 13:05:55,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 13:05:55,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 13:05:55,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 13:05:55,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 13:05:55,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 13:05:55,243 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 13:05:55,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 13:05:55,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 13:05:55,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 13:05:55,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 13:05:55,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 13:05:55,251 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 13:05:55,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 13:05:55,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 13:05:55,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 13:05:55,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 13:05:55,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 13:05:55,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 13:05:55,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 13:05:55,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 13:05:55,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 13:05:55,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 13:05:55,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 13:05:55,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 13:05:55,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 13:05:55,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 13:05:55,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 13:05:55,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 13:05:55,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 13:05:55,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 13:05:55,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 13:05:55,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 13:05:55,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 13:05:55,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 13:05:55,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 13:05:55,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 13:05:55,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 13:05:55,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 13:05:55,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 13:05:55,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 13:05:55,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 13:05:55,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 13:05:55,305 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 13:05:55,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 13:05:55,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 13:05:55,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 13:05:55,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 13:05:55,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 13:05:55,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 13:05:55,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 13:05:55,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 13:05:55,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 13:05:55,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 13:05:55,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 13:05:55,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 13:05:55,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:05:55,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 13:05:55,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 13:05:55,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 13:05:55,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 13:05:55,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 13:05:55,308 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 13:05:55,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 13:05:55,308 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 13:05:55,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3e9b23fefd4aff564027293c77af69f71c45b79d0c58b8bd829ffe606e21709 [2022-07-21 13:05:55,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 13:05:55,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 13:05:55,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 13:05:55,606 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 13:05:55,607 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 13:05:55,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i [2022-07-21 13:05:55,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fee40f8/24aa4593cdd84666ac170a970b1eba00/FLAGb1ea9fe2f [2022-07-21 13:05:56,291 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 13:05:56,291 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i [2022-07-21 13:05:56,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fee40f8/24aa4593cdd84666ac170a970b1eba00/FLAGb1ea9fe2f [2022-07-21 13:05:56,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fee40f8/24aa4593cdd84666ac170a970b1eba00 [2022-07-21 13:05:56,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 13:05:56,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 13:05:56,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 13:05:56,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 13:05:56,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 13:05:56,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:05:56" (1/1) ... [2022-07-21 13:05:56,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b958bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:56, skipping insertion in model container [2022-07-21 13:05:56,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:05:56" (1/1) ... [2022-07-21 13:05:56,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 13:05:56,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 13:05:58,371 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i[318989,319002] [2022-07-21 13:05:58,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:05:58,454 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 13:05:58,742 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i[318989,319002] [2022-07-21 13:05:58,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 13:05:58,859 INFO L208 MainTranslator]: Completed translation [2022-07-21 13:05:58,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58 WrapperNode [2022-07-21 13:05:58,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 13:05:58,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 13:05:58,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 13:05:58,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 13:05:58,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:58,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:59,117 INFO L137 Inliner]: procedures = 285, calls = 2040, calls flagged for inlining = 151, calls inlined = 148, statements flattened = 5707 [2022-07-21 13:05:59,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 13:05:59,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 13:05:59,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 13:05:59,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 13:05:59,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:59,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:59,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:59,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:59,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:59,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:59,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:59,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 13:05:59,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 13:05:59,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 13:05:59,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 13:05:59,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (1/1) ... [2022-07-21 13:05:59,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 13:05:59,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:05:59,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 13:05:59,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 13:05:59,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 13:05:59,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 13:05:59,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-21 13:05:59,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-21 13:05:59,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 13:05:59,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 13:05:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 13:05:59,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 13:05:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure slic_mcast_set_mask [2022-07-21 13:05:59,493 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_mcast_set_mask [2022-07-21 13:05:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-21 13:05:59,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-21 13:05:59,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 13:05:59,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 13:05:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure slic_intagg_set [2022-07-21 13:05:59,494 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_intagg_set [2022-07-21 13:05:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 13:05:59,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 13:05:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-21 13:05:59,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-21 13:05:59,494 INFO L130 BoogieDeclarations]: Found specification of procedure slic_mcast_set_list [2022-07-21 13:05:59,494 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_mcast_set_list [2022-07-21 13:05:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 13:05:59,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 13:05:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure slic_upr_queue_request [2022-07-21 13:05:59,495 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_upr_queue_request [2022-07-21 13:05:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 13:05:59,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 13:05:59,495 INFO L130 BoogieDeclarations]: Found specification of procedure slic_link_config [2022-07-21 13:05:59,495 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_link_config [2022-07-21 13:05:59,496 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-21 13:05:59,496 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-21 13:05:59,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2022-07-21 13:05:59,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2022-07-21 13:05:59,496 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-21 13:05:59,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-21 13:05:59,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-21 13:05:59,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-21 13:05:59,496 INFO L130 BoogieDeclarations]: Found specification of procedure slic_reg64_write [2022-07-21 13:05:59,497 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_reg64_write [2022-07-21 13:05:59,497 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-21 13:05:59,497 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-21 13:05:59,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-07-21 13:05:59,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-07-21 13:05:59,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 13:05:59,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 13:05:59,497 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 13:05:59,497 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 13:05:59,498 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-21 13:05:59,498 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-21 13:05:59,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-21 13:05:59,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-21 13:05:59,498 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-21 13:05:59,498 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-21 13:05:59,498 INFO L130 BoogieDeclarations]: Found specification of procedure slic_rspqueue_free [2022-07-21 13:05:59,498 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_rspqueue_free [2022-07-21 13:05:59,498 INFO L130 BoogieDeclarations]: Found specification of procedure slic_upr_request_complete [2022-07-21 13:05:59,499 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_upr_request_complete [2022-07-21 13:05:59,499 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-07-21 13:05:59,499 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-07-21 13:05:59,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 13:05:59,499 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-21 13:05:59,499 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-21 13:05:59,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 13:05:59,519 INFO L130 BoogieDeclarations]: Found specification of procedure slic_link_event_handler [2022-07-21 13:05:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_link_event_handler [2022-07-21 13:05:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-21 13:05:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-21 13:05:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 13:05:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 13:05:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-07-21 13:05:59,520 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-07-21 13:05:59,520 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-21 13:05:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-21 13:05:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-21 13:05:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-21 13:05:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-21 13:05:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-21 13:05:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 13:05:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 13:05:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-07-21 13:05:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-07-21 13:05:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 13:05:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure slic_mac_address_config [2022-07-21 13:05:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_mac_address_config [2022-07-21 13:05:59,522 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-21 13:05:59,522 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-21 13:05:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure slic_cmdq_addcmdpage [2022-07-21 13:05:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_cmdq_addcmdpage [2022-07-21 13:05:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-21 13:05:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-21 13:05:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 13:05:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 13:05:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-21 13:05:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-21 13:05:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-21 13:05:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-21 13:05:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure slic_upr_start [2022-07-21 13:05:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_upr_start [2022-07-21 13:05:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure slic_rcvqueue_fill [2022-07-21 13:05:59,524 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_rcvqueue_fill [2022-07-21 13:05:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 13:05:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 13:05:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure slic_rcvqueue_reinsert [2022-07-21 13:05:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_rcvqueue_reinsert [2022-07-21 13:05:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure slic_mac_set_address [2022-07-21 13:05:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_mac_set_address [2022-07-21 13:05:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure slic_reg32_write [2022-07-21 13:05:59,525 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_reg32_write [2022-07-21 13:05:59,525 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_3 [2022-07-21 13:05:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_3 [2022-07-21 13:05:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-21 13:05:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-21 13:05:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-21 13:05:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-21 13:05:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 13:05:59,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 13:05:59,526 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-21 13:05:59,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-21 13:05:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 13:05:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-21 13:05:59,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-21 13:05:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2022-07-21 13:05:59,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2022-07-21 13:05:59,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 13:05:59,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 13:05:59,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 13:05:59,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 13:05:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure slic_ioctl [2022-07-21 13:05:59,531 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_ioctl [2022-07-21 13:05:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 13:05:59,531 INFO L130 BoogieDeclarations]: Found specification of procedure slic_config_set [2022-07-21 13:05:59,531 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_config_set [2022-07-21 13:05:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 13:05:59,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 13:05:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2022-07-21 13:05:59,532 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2022-07-21 13:05:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2022-07-21 13:05:59,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2022-07-21 13:05:59,532 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-21 13:05:59,533 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-21 13:05:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 13:05:59,533 INFO L130 BoogieDeclarations]: Found specification of procedure slic_init_driver [2022-07-21 13:05:59,533 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_init_driver [2022-07-21 13:05:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-07-21 13:05:59,559 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-07-21 13:05:59,559 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-21 13:05:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-21 13:05:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 13:05:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-21 13:05:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-21 13:05:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2022-07-21 13:05:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2022-07-21 13:05:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2022-07-21 13:05:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2022-07-21 13:05:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure slic_cmdqmem_addpage [2022-07-21 13:05:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_cmdqmem_addpage [2022-07-21 13:05:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure slic_get_stats [2022-07-21 13:05:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_get_stats [2022-07-21 13:05:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure slic_cmdq_free [2022-07-21 13:05:59,560 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_cmdq_free [2022-07-21 13:05:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure slic_rcvqueue_free [2022-07-21 13:05:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_rcvqueue_free [2022-07-21 13:05:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-21 13:05:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-21 13:05:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-21 13:05:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-21 13:05:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure slic_upr_request [2022-07-21 13:05:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_upr_request [2022-07-21 13:05:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-21 13:05:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-21 13:05:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure slic_adapter_freeresources [2022-07-21 13:05:59,561 INFO L138 BoogieDeclarations]: Found implementation of procedure slic_adapter_freeresources [2022-07-21 13:05:59,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 13:05:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 13:05:59,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 13:06:00,202 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 13:06:00,204 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 13:06:00,781 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 13:06:07,756 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 13:06:07,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 13:06:07,768 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-07-21 13:06:07,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:06:07 BoogieIcfgContainer [2022-07-21 13:06:07,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 13:06:07,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 13:06:07,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 13:06:07,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 13:06:07,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:05:56" (1/3) ... [2022-07-21 13:06:07,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5476d931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:06:07, skipping insertion in model container [2022-07-21 13:06:07,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:05:58" (2/3) ... [2022-07-21 13:06:07,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5476d931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:06:07, skipping insertion in model container [2022-07-21 13:06:07,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:06:07" (3/3) ... [2022-07-21 13:06:07,777 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--staging--slicoss--slicoss.ko-entry_point.cil.out.i [2022-07-21 13:06:07,786 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 13:06:07,786 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 13:06:07,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 13:06:07,844 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@435f06b1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@384ba1bc [2022-07-21 13:06:07,844 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 13:06:07,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 1732 states, 1297 states have (on average 1.4309946029298382) internal successors, (1856), 1359 states have internal predecessors, (1856), 359 states have call successors, (359), 80 states have call predecessors, (359), 79 states have return successors, (351), 335 states have call predecessors, (351), 351 states have call successors, (351) [2022-07-21 13:06:07,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-21 13:06:07,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:06:07,867 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:06:07,868 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:06:07,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:06:07,871 INFO L85 PathProgramCache]: Analyzing trace with hash -395369761, now seen corresponding path program 1 times [2022-07-21 13:06:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:06:07,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504101657] [2022-07-21 13:06:07,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:06:07,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:06:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:06:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:08,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:06:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:06:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:08,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:06:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:06:08,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:06:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:06:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:06:08,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:06:08,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504101657] [2022-07-21 13:06:08,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504101657] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:06:08,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:06:08,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 13:06:08,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956847636] [2022-07-21 13:06:08,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:06:08,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 13:06:08,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:06:08,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 13:06:08,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 13:06:08,588 INFO L87 Difference]: Start difference. First operand has 1732 states, 1297 states have (on average 1.4309946029298382) internal successors, (1856), 1359 states have internal predecessors, (1856), 359 states have call successors, (359), 80 states have call predecessors, (359), 79 states have return successors, (351), 335 states have call predecessors, (351), 351 states have call successors, (351) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 13:06:14,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:06:15,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:06:15,006 INFO L93 Difference]: Finished difference Result 3634 states and 5494 transitions. [2022-07-21 13:06:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 13:06:15,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 119 [2022-07-21 13:06:15,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:06:15,040 INFO L225 Difference]: With dead ends: 3634 [2022-07-21 13:06:15,049 INFO L226 Difference]: Without dead ends: 1887 [2022-07-21 13:06:15,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:06:15,074 INFO L413 NwaCegarLoop]: 2319 mSDtfsCounter, 1753 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 1427 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 3366 SdHoareTripleChecker+Invalid, 2318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1427 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:06:15,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 3366 Invalid, 2318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1427 Valid, 890 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-07-21 13:06:15,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2022-07-21 13:06:15,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1697. [2022-07-21 13:06:15,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1697 states, 1272 states have (on average 1.3915094339622642) internal successors, (1770), 1320 states have internal predecessors, (1770), 346 states have call successors, (346), 79 states have call predecessors, (346), 78 states have return successors, (345), 329 states have call predecessors, (345), 345 states have call successors, (345) [2022-07-21 13:06:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1697 states to 1697 states and 2461 transitions. [2022-07-21 13:06:15,273 INFO L78 Accepts]: Start accepts. Automaton has 1697 states and 2461 transitions. Word has length 119 [2022-07-21 13:06:15,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:06:15,274 INFO L495 AbstractCegarLoop]: Abstraction has 1697 states and 2461 transitions. [2022-07-21 13:06:15,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 13:06:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1697 states and 2461 transitions. [2022-07-21 13:06:15,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 13:06:15,280 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:06:15,280 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:06:15,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 13:06:15,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:06:15,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:06:15,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1858104913, now seen corresponding path program 1 times [2022-07-21 13:06:15,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:06:15,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715898771] [2022-07-21 13:06:15,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:06:15,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:06:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:06:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:06:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:06:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:06:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:06:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:06:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 13:06:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:06:15,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:06:15,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715898771] [2022-07-21 13:06:15,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715898771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:06:15,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:06:15,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 13:06:15,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337490474] [2022-07-21 13:06:15,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:06:15,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 13:06:15,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:06:15,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 13:06:15,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 13:06:15,605 INFO L87 Difference]: Start difference. First operand 1697 states and 2461 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 13:06:20,995 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:06:29,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:06:31,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:06:32,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:06:32,162 INFO L93 Difference]: Finished difference Result 4752 states and 6932 transitions. [2022-07-21 13:06:32,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 13:06:32,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 118 [2022-07-21 13:06:32,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:06:32,178 INFO L225 Difference]: With dead ends: 4752 [2022-07-21 13:06:32,178 INFO L226 Difference]: Without dead ends: 3077 [2022-07-21 13:06:32,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 13:06:32,185 INFO L413 NwaCegarLoop]: 2436 mSDtfsCounter, 3309 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 3763 mSolverCounterSat, 1612 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3469 SdHoareTripleChecker+Valid, 6747 SdHoareTripleChecker+Invalid, 5377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1612 IncrementalHoareTripleChecker+Valid, 3763 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-07-21 13:06:32,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3469 Valid, 6747 Invalid, 5377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1612 Valid, 3763 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2022-07-21 13:06:32,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3077 states. [2022-07-21 13:06:32,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3077 to 2764. [2022-07-21 13:06:32,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2085 states have (on average 1.392326139088729) internal successors, (2903), 2164 states have internal predecessors, (2903), 539 states have call successors, (539), 140 states have call predecessors, (539), 139 states have return successors, (538), 510 states have call predecessors, (538), 538 states have call successors, (538) [2022-07-21 13:06:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3980 transitions. [2022-07-21 13:06:32,352 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3980 transitions. Word has length 118 [2022-07-21 13:06:32,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:06:32,354 INFO L495 AbstractCegarLoop]: Abstraction has 2764 states and 3980 transitions. [2022-07-21 13:06:32,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-07-21 13:06:32,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3980 transitions. [2022-07-21 13:06:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-21 13:06:32,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:06:32,359 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:06:32,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 13:06:32,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:06:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:06:32,359 INFO L85 PathProgramCache]: Analyzing trace with hash 6289977, now seen corresponding path program 1 times [2022-07-21 13:06:32,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:06:32,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550790686] [2022-07-21 13:06:32,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:06:32,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:06:32,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:06:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:06:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:32,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:06:32,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:06:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:32,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:06:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:06:32,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 13:06:32,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 13:06:32,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:06:32,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:06:32,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550790686] [2022-07-21 13:06:32,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550790686] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:06:32,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:06:32,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 13:06:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468538741] [2022-07-21 13:06:32,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:06:32,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 13:06:32,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:06:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 13:06:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:06:32,745 INFO L87 Difference]: Start difference. First operand 2764 states and 3980 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:06:35,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:06:44,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:06:45,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:06:45,507 INFO L93 Difference]: Finished difference Result 8869 states and 12927 transitions. [2022-07-21 13:06:45,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 13:06:45,507 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 137 [2022-07-21 13:06:45,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:06:45,533 INFO L225 Difference]: With dead ends: 8869 [2022-07-21 13:06:45,533 INFO L226 Difference]: Without dead ends: 6127 [2022-07-21 13:06:45,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-21 13:06:45,545 INFO L413 NwaCegarLoop]: 2589 mSDtfsCounter, 5697 mSDsluCounter, 5956 mSDsCounter, 0 mSdLazyCounter, 4757 mSolverCounterSat, 3013 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5957 SdHoareTripleChecker+Valid, 8545 SdHoareTripleChecker+Invalid, 7772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3013 IncrementalHoareTripleChecker+Valid, 4757 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-07-21 13:06:45,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5957 Valid, 8545 Invalid, 7772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3013 Valid, 4757 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-07-21 13:06:45,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6127 states. [2022-07-21 13:06:45,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 5513. [2022-07-21 13:06:45,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5513 states, 4163 states have (on average 1.3922651933701657) internal successors, (5796), 4321 states have internal predecessors, (5796), 1070 states have call successors, (1070), 280 states have call predecessors, (1070), 279 states have return successors, (1071), 1013 states have call predecessors, (1071), 1069 states have call successors, (1071) [2022-07-21 13:06:45,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5513 states to 5513 states and 7937 transitions. [2022-07-21 13:06:45,710 INFO L78 Accepts]: Start accepts. Automaton has 5513 states and 7937 transitions. Word has length 137 [2022-07-21 13:06:45,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:06:45,712 INFO L495 AbstractCegarLoop]: Abstraction has 5513 states and 7937 transitions. [2022-07-21 13:06:45,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 4 states have internal predecessors, (62), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:06:45,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5513 states and 7937 transitions. [2022-07-21 13:06:45,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-21 13:06:45,715 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:06:45,715 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:06:45,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 13:06:45,715 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:06:45,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:06:45,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1292495911, now seen corresponding path program 1 times [2022-07-21 13:06:45,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:06:45,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084936747] [2022-07-21 13:06:45,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:06:45,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:06:45,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:06:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:06:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:45,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:06:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:45,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:06:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:45,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:06:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:06:45,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:06:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 13:06:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 13:06:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:06:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:06:45,998 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:06:45,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:06:45,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084936747] [2022-07-21 13:06:45,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084936747] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:06:45,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:06:45,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 13:06:45,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032149157] [2022-07-21 13:06:45,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:06:46,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 13:06:46,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:06:46,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 13:06:46,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:06:46,001 INFO L87 Difference]: Start difference. First operand 5513 states and 7937 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:06:48,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:06:53,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:06:55,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:04,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:06,512 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:08,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:11,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:13,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:15,253 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:15,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:07:15,979 INFO L93 Difference]: Finished difference Result 17732 states and 25825 transitions. [2022-07-21 13:07:15,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 13:07:15,980 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 136 [2022-07-21 13:07:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:07:16,036 INFO L225 Difference]: With dead ends: 17732 [2022-07-21 13:07:16,037 INFO L226 Difference]: Without dead ends: 12241 [2022-07-21 13:07:16,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-21 13:07:16,059 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 4470 mSDsluCounter, 7840 mSDsCounter, 0 mSdLazyCounter, 6707 mSolverCounterSat, 2075 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4726 SdHoareTripleChecker+Valid, 10448 SdHoareTripleChecker+Invalid, 8789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2075 IncrementalHoareTripleChecker+Valid, 6707 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2022-07-21 13:07:16,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4726 Valid, 10448 Invalid, 8789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2075 Valid, 6707 Invalid, 7 Unknown, 0 Unchecked, 29.4s Time] [2022-07-21 13:07:16,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12241 states. [2022-07-21 13:07:16,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12241 to 11019. [2022-07-21 13:07:16,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11019 states, 8325 states have (on average 1.3914714714714715) internal successors, (11584), 8641 states have internal predecessors, (11584), 2132 states have call successors, (2132), 562 states have call predecessors, (2132), 561 states have return successors, (2139), 2019 states have call predecessors, (2139), 2131 states have call successors, (2139) [2022-07-21 13:07:16,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11019 states to 11019 states and 15855 transitions. [2022-07-21 13:07:16,509 INFO L78 Accepts]: Start accepts. Automaton has 11019 states and 15855 transitions. Word has length 136 [2022-07-21 13:07:16,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:07:16,509 INFO L495 AbstractCegarLoop]: Abstraction has 11019 states and 15855 transitions. [2022-07-21 13:07:16,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:07:16,510 INFO L276 IsEmpty]: Start isEmpty. Operand 11019 states and 15855 transitions. [2022-07-21 13:07:16,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-21 13:07:16,512 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:07:16,512 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:07:16,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 13:07:16,513 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:07:16,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:07:16,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1255905380, now seen corresponding path program 1 times [2022-07-21 13:07:16,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:07:16,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433310452] [2022-07-21 13:07:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:07:16,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:07:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:07:16,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:16,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:07:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:07:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:07:16,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:16,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:07:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:07:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 13:07:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-21 13:07:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:16,757 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:07:16,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:07:16,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433310452] [2022-07-21 13:07:16,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433310452] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:07:16,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:07:16,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 13:07:16,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879026938] [2022-07-21 13:07:16,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:07:16,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 13:07:16,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:07:16,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 13:07:16,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:07:16,761 INFO L87 Difference]: Start difference. First operand 11019 states and 15855 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:07:19,964 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:21,273 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:32,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:34,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:36,823 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:38,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:39,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:07:39,578 INFO L93 Difference]: Finished difference Result 35474 states and 51613 transitions. [2022-07-21 13:07:39,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 13:07:39,579 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 134 [2022-07-21 13:07:39,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:07:39,676 INFO L225 Difference]: With dead ends: 35474 [2022-07-21 13:07:39,676 INFO L226 Difference]: Without dead ends: 24477 [2022-07-21 13:07:39,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-21 13:07:39,722 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 4592 mSDsluCounter, 7100 mSDsCounter, 0 mSdLazyCounter, 5852 mSolverCounterSat, 2093 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4848 SdHoareTripleChecker+Valid, 9792 SdHoareTripleChecker+Invalid, 7950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2093 IncrementalHoareTripleChecker+Valid, 5852 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:07:39,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4848 Valid, 9792 Invalid, 7950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2093 Valid, 5852 Invalid, 5 Unknown, 0 Unchecked, 22.1s Time] [2022-07-21 13:07:39,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24477 states. [2022-07-21 13:07:40,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24477 to 21959. [2022-07-21 13:07:40,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21959 states, 16589 states have (on average 1.3917656278256676) internal successors, (23088), 17245 states have internal predecessors, (23088), 4248 states have call successors, (4248), 1122 states have call predecessors, (4248), 1121 states have return successors, (4271), 3999 states have call predecessors, (4271), 4247 states have call successors, (4271) [2022-07-21 13:07:40,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21959 states to 21959 states and 31607 transitions. [2022-07-21 13:07:40,437 INFO L78 Accepts]: Start accepts. Automaton has 21959 states and 31607 transitions. Word has length 134 [2022-07-21 13:07:40,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:07:40,439 INFO L495 AbstractCegarLoop]: Abstraction has 21959 states and 31607 transitions. [2022-07-21 13:07:40,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:07:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 21959 states and 31607 transitions. [2022-07-21 13:07:40,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-21 13:07:40,442 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:07:40,442 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:07:40,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 13:07:40,442 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:07:40,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:07:40,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1567603350, now seen corresponding path program 1 times [2022-07-21 13:07:40,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:07:40,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734908277] [2022-07-21 13:07:40,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:07:40,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:07:40,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:07:40,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:40,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:07:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:07:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:07:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:07:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:07:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 13:07:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 13:07:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:40,668 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:07:40,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:07:40,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734908277] [2022-07-21 13:07:40,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734908277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:07:40,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 13:07:40,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 13:07:40,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813510565] [2022-07-21 13:07:40,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:07:40,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 13:07:40,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:07:40,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 13:07:40,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-21 13:07:40,671 INFO L87 Difference]: Start difference. First operand 21959 states and 31607 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:07:43,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:51,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:07:55,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:07:55,028 INFO L93 Difference]: Finished difference Result 70263 states and 102205 transitions. [2022-07-21 13:07:55,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 13:07:55,029 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 135 [2022-07-21 13:07:55,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:07:55,318 INFO L225 Difference]: With dead ends: 70263 [2022-07-21 13:07:55,318 INFO L226 Difference]: Without dead ends: 48326 [2022-07-21 13:07:55,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2022-07-21 13:07:55,367 INFO L413 NwaCegarLoop]: 2596 mSDtfsCounter, 5688 mSDsluCounter, 5968 mSDsCounter, 0 mSdLazyCounter, 4766 mSolverCounterSat, 3015 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5948 SdHoareTripleChecker+Valid, 8564 SdHoareTripleChecker+Invalid, 7783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3015 IncrementalHoareTripleChecker+Valid, 4766 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-07-21 13:07:55,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5948 Valid, 8564 Invalid, 7783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3015 Valid, 4766 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time] [2022-07-21 13:07:55,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48326 states. [2022-07-21 13:07:56,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48326 to 43444. [2022-07-21 13:07:56,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43444 states, 32781 states have (on average 1.3899820017693176) internal successors, (45565), 34079 states have internal predecessors, (45565), 8426 states have call successors, (8426), 2237 states have call predecessors, (8426), 2236 states have return successors, (8489), 7937 states have call predecessors, (8489), 8425 states have call successors, (8489) [2022-07-21 13:07:56,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43444 states to 43444 states and 62480 transitions. [2022-07-21 13:07:56,880 INFO L78 Accepts]: Start accepts. Automaton has 43444 states and 62480 transitions. Word has length 135 [2022-07-21 13:07:56,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:07:56,880 INFO L495 AbstractCegarLoop]: Abstraction has 43444 states and 62480 transitions. [2022-07-21 13:07:56,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-07-21 13:07:56,881 INFO L276 IsEmpty]: Start isEmpty. Operand 43444 states and 62480 transitions. [2022-07-21 13:07:56,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-21 13:07:56,883 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:07:56,883 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:07:56,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 13:07:56,884 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:07:56,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:07:56,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1446031472, now seen corresponding path program 1 times [2022-07-21 13:07:56,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:07:56,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558914868] [2022-07-21 13:07:56,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:07:56,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:07:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:07:57,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:07:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:07:57,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:07:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:07:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:07:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:07:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 13:07:57,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-21 13:07:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-21 13:07:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:07:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:57,292 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-07-21 13:07:57,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:07:57,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558914868] [2022-07-21 13:07:57,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558914868] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 13:07:57,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643156933] [2022-07-21 13:07:57,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:07:57,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:07:57,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:07:57,295 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 13:07:57,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 13:07:58,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:07:58,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 13:07:58,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:07:58,137 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:07:58,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:07:58,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643156933] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:07:58,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:07:58,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2022-07-21 13:07:58,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012057217] [2022-07-21 13:07:58,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:07:58,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:07:58,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:07:58,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:07:58,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2022-07-21 13:07:58,139 INFO L87 Difference]: Start difference. First operand 43444 states and 62480 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 13:07:59,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:07:59,736 INFO L93 Difference]: Finished difference Result 108704 states and 156292 transitions. [2022-07-21 13:07:59,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 13:07:59,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 147 [2022-07-21 13:07:59,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:08:00,071 INFO L225 Difference]: With dead ends: 108704 [2022-07-21 13:08:00,071 INFO L226 Difference]: Without dead ends: 65282 [2022-07-21 13:08:00,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2022-07-21 13:08:00,161 INFO L413 NwaCegarLoop]: 3423 mSDtfsCounter, 2481 mSDsluCounter, 16113 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 19536 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:08:00,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 19536 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:08:00,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65282 states. [2022-07-21 13:08:02,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65282 to 64987. [2022-07-21 13:08:02,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64987 states, 49031 states have (on average 1.3901205359874365) internal successors, (68159), 50995 states have internal predecessors, (68159), 12596 states have call successors, (12596), 3344 states have call predecessors, (12596), 3359 states have return successors, (12739), 11859 states have call predecessors, (12739), 12595 states have call successors, (12739) [2022-07-21 13:08:02,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64987 states to 64987 states and 93494 transitions. [2022-07-21 13:08:02,606 INFO L78 Accepts]: Start accepts. Automaton has 64987 states and 93494 transitions. Word has length 147 [2022-07-21 13:08:02,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:08:02,609 INFO L495 AbstractCegarLoop]: Abstraction has 64987 states and 93494 transitions. [2022-07-21 13:08:02,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 5 states have internal predecessors, (70), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 13:08:02,609 INFO L276 IsEmpty]: Start isEmpty. Operand 64987 states and 93494 transitions. [2022-07-21 13:08:02,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 13:08:02,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:08:02,613 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:08:02,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 13:08:02,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:08:02,824 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:08:02,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:08:02,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1401527363, now seen corresponding path program 1 times [2022-07-21 13:08:02,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:08:02,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998702112] [2022-07-21 13:08:02,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:08:02,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:08:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:02,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:08:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:02,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:02,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:08:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:02,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:02,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:08:03,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:08:03,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:03,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:03,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:08:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:08:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 13:08:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 13:08:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-21 13:08:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:08:03,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:08:03,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998702112] [2022-07-21 13:08:03,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998702112] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 13:08:03,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189084578] [2022-07-21 13:08:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:08:03,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:08:03,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:08:03,128 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) [2022-07-21 13:08:03,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 13:08:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:03,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 13:08:03,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:08:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:08:03,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:08:03,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189084578] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:08:03,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:08:03,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-21 13:08:03,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491221662] [2022-07-21 13:08:03,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:08:03,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:08:03,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:08:03,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:08:03,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-21 13:08:03,893 INFO L87 Difference]: Start difference. First operand 64987 states and 93494 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 13:08:05,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:08:05,990 INFO L93 Difference]: Finished difference Result 151896 states and 218412 transitions. [2022-07-21 13:08:05,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 13:08:05,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 148 [2022-07-21 13:08:05,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:08:06,532 INFO L225 Difference]: With dead ends: 151896 [2022-07-21 13:08:06,533 INFO L226 Difference]: Without dead ends: 86931 [2022-07-21 13:08:06,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-21 13:08:06,707 INFO L413 NwaCegarLoop]: 3573 mSDtfsCounter, 2481 mSDsluCounter, 16701 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 20274 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:08:06,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 20274 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:08:06,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86931 states. [2022-07-21 13:08:09,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86931 to 86594. [2022-07-21 13:08:09,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86594 states, 65321 states have (on average 1.3899511642503941) internal successors, (90793), 67983 states have internal predecessors, (90793), 16766 states have call successors, (16766), 4451 states have call predecessors, (16766), 4506 states have return successors, (17013), 15773 states have call predecessors, (17013), 16765 states have call successors, (17013) [2022-07-21 13:08:09,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86594 states to 86594 states and 124572 transitions. [2022-07-21 13:08:09,734 INFO L78 Accepts]: Start accepts. Automaton has 86594 states and 124572 transitions. Word has length 148 [2022-07-21 13:08:09,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:08:09,737 INFO L495 AbstractCegarLoop]: Abstraction has 86594 states and 124572 transitions. [2022-07-21 13:08:09,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 13:08:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 86594 states and 124572 transitions. [2022-07-21 13:08:09,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-07-21 13:08:09,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:08:09,743 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:08:09,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 13:08:09,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-07-21 13:08:09,955 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:08:09,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:08:09,956 INFO L85 PathProgramCache]: Analyzing trace with hash 498772759, now seen corresponding path program 1 times [2022-07-21 13:08:09,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:08:09,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745417669] [2022-07-21 13:08:09,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:08:09,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:08:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:08:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:08:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:10,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:08:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:08:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:10,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:08:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:08:10,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-21 13:08:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-21 13:08:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-07-21 13:08:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:10,321 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:08:10,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:08:10,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745417669] [2022-07-21 13:08:10,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745417669] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 13:08:10,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340323105] [2022-07-21 13:08:10,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:08:10,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:08:10,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:08:10,336 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) [2022-07-21 13:08:10,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 13:08:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:11,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 13:08:11,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:08:11,140 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:08:11,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:08:11,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340323105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:08:11,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:08:11,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-21 13:08:11,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136987835] [2022-07-21 13:08:11,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:08:11,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:08:11,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:08:11,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:08:11,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-21 13:08:11,142 INFO L87 Difference]: Start difference. First operand 86594 states and 124572 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 13:08:13,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:08:13,922 INFO L93 Difference]: Finished difference Result 195088 states and 280532 transitions. [2022-07-21 13:08:13,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 13:08:13,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 149 [2022-07-21 13:08:13,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:08:14,369 INFO L225 Difference]: With dead ends: 195088 [2022-07-21 13:08:14,369 INFO L226 Difference]: Without dead ends: 108516 [2022-07-21 13:08:14,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-21 13:08:14,604 INFO L413 NwaCegarLoop]: 3637 mSDtfsCounter, 2481 mSDsluCounter, 16957 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 20594 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:08:14,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 20594 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:08:14,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108516 states. [2022-07-21 13:08:17,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108516 to 86638. [2022-07-21 13:08:17,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86638 states, 65353 states have (on average 1.3897602252383212) internal successors, (90825), 68019 states have internal predecessors, (90825), 16766 states have call successors, (16766), 4451 states have call predecessors, (16766), 4518 states have return successors, (17031), 15781 states have call predecessors, (17031), 16765 states have call successors, (17031) [2022-07-21 13:08:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86638 states to 86638 states and 124622 transitions. [2022-07-21 13:08:17,805 INFO L78 Accepts]: Start accepts. Automaton has 86638 states and 124622 transitions. Word has length 149 [2022-07-21 13:08:17,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:08:17,807 INFO L495 AbstractCegarLoop]: Abstraction has 86638 states and 124622 transitions. [2022-07-21 13:08:17,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 13:08:17,815 INFO L276 IsEmpty]: Start isEmpty. Operand 86638 states and 124622 transitions. [2022-07-21 13:08:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-07-21 13:08:17,819 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:08:17,820 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 13:08:17,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 13:08:18,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:08:18,040 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:08:18,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:08:18,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1239943414, now seen corresponding path program 1 times [2022-07-21 13:08:18,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:08:18,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044257284] [2022-07-21 13:08:18,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:08:18,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:08:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:08:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:08:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:08:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:18,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:08:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:08:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:08:18,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:18,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 13:08:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 13:08:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 13:08:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:18,375 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:08:18,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:08:18,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044257284] [2022-07-21 13:08:18,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044257284] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 13:08:18,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035515903] [2022-07-21 13:08:18,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:08:18,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:08:18,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:08:18,377 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) [2022-07-21 13:08:18,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 13:08:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:19,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 13:08:19,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:08:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 13:08:19,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 13:08:19,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035515903] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 13:08:19,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 13:08:19,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2022-07-21 13:08:19,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509718672] [2022-07-21 13:08:19,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 13:08:19,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 13:08:19,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:08:19,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 13:08:19,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2022-07-21 13:08:19,158 INFO L87 Difference]: Start difference. First operand 86638 states and 124622 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 13:08:21,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 13:08:21,803 INFO L93 Difference]: Finished difference Result 195148 states and 280598 transitions. [2022-07-21 13:08:21,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 13:08:21,803 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2022-07-21 13:08:21,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 13:08:22,468 INFO L225 Difference]: With dead ends: 195148 [2022-07-21 13:08:22,468 INFO L226 Difference]: Without dead ends: 108532 [2022-07-21 13:08:22,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2022-07-21 13:08:22,668 INFO L413 NwaCegarLoop]: 3607 mSDtfsCounter, 2481 mSDsluCounter, 16837 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 20444 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 13:08:22,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 20444 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 13:08:22,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108532 states. [2022-07-21 13:08:25,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108532 to 86664. [2022-07-21 13:08:25,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86664 states, 65373 states have (on average 1.3896409832805592) internal successors, (90845), 68037 states have internal predecessors, (90845), 16766 states have call successors, (16766), 4451 states have call predecessors, (16766), 4524 states have return successors, (17037), 15789 states have call predecessors, (17037), 16765 states have call successors, (17037) [2022-07-21 13:08:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86664 states to 86664 states and 124648 transitions. [2022-07-21 13:08:25,535 INFO L78 Accepts]: Start accepts. Automaton has 86664 states and 124648 transitions. Word has length 150 [2022-07-21 13:08:25,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 13:08:25,536 INFO L495 AbstractCegarLoop]: Abstraction has 86664 states and 124648 transitions. [2022-07-21 13:08:25,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 13:08:25,536 INFO L276 IsEmpty]: Start isEmpty. Operand 86664 states and 124648 transitions. [2022-07-21 13:08:25,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-07-21 13:08:25,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 13:08:25,541 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2022-07-21 13:08:25,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 13:08:25,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:08:25,759 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 13:08:25,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 13:08:25,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1984849153, now seen corresponding path program 1 times [2022-07-21 13:08:25,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 13:08:25,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071624519] [2022-07-21 13:08:25,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:08:25,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 13:08:25,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 13:08:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 13:08:25,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 13:08:25,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 13:08:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:25,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:25,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 13:08:25,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 13:08:26,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 13:08:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-21 13:08:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 13:08:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 13:08:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-21 13:08:26,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 13:08:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,148 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2022-07-21 13:08:26,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 13:08:26,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071624519] [2022-07-21 13:08:26,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071624519] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 13:08:26,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282535113] [2022-07-21 13:08:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 13:08:26,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 13:08:26,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 13:08:26,150 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) [2022-07-21 13:08:26,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 13:08:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 13:08:26,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 2312 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-21 13:08:26,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 13:08:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-07-21 13:08:27,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 13:08:27,622 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2022-07-21 13:08:27,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282535113] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 13:08:27,623 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 13:08:27,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 10] total 23 [2022-07-21 13:08:27,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820453406] [2022-07-21 13:08:27,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 13:08:27,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-21 13:08:27,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 13:08:27,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-21 13:08:27,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2022-07-21 13:08:27,624 INFO L87 Difference]: Start difference. First operand 86664 states and 124648 transitions. Second operand has 23 states, 23 states have (on average 6.086956521739131) internal successors, (140), 15 states have internal predecessors, (140), 5 states have call successors, (33), 8 states have call predecessors, (33), 7 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2022-07-21 13:08:34,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:08:36,773 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:08:42,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:11,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:13,670 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:29,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:31,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:34,202 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:37,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:39,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:49,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:54,385 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:55,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:09:58,729 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:10:00,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 13:10:02,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []