./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.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 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:01:16,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:01:16,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:01:16,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:01:16,696 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:01:16,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:01:16,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:01:16,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:01:16,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:01:16,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:01:16,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:01:16,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:01:16,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:01:16,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:01:16,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:01:16,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:01:16,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:01:16,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:01:16,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:01:16,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:01:16,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:01:16,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:01:16,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:01:16,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:01:16,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:01:16,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:01:16,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:01:16,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:01:16,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:01:16,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:01:16,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:01:16,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:01:16,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:01:16,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:01:16,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:01:16,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:01:16,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:01:16,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:01:16,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:01:16,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:01:16,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:01:16,737 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:01:16,757 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:01:16,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:01:16,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:01:16,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:01:16,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:01:16,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:01:16,761 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:01:16,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:01:16,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:01:16,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:01:16,763 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:01:16,763 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:01:16,763 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:01:16,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:01:16,763 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:01:16,763 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:01:16,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:01:16,764 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:01:16,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:01:16,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:01:16,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:01:16,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:01:16,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:01:16,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:01:16,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:01:16,771 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:01:16,771 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:01:16,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:01:16,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:01:16,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 [2021-11-05 20:01:17,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:01:17,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:01:17,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:01:17,104 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:01:17,105 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:01:17,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-05 20:01:17,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f2b1457/6cf0f120db6b4377b1dfc72eb6901b8a/FLAG7c7902110 [2021-11-05 20:01:17,894 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:01:17,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-05 20:01:17,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f2b1457/6cf0f120db6b4377b1dfc72eb6901b8a/FLAG7c7902110 [2021-11-05 20:01:17,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f2b1457/6cf0f120db6b4377b1dfc72eb6901b8a [2021-11-05 20:01:17,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:01:17,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:01:17,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:01:17,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:01:17,972 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:01:17,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:01:17" (1/1) ... [2021-11-05 20:01:17,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3932809d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:17, skipping insertion in model container [2021-11-05 20:01:17,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:01:17" (1/1) ... [2021-11-05 20:01:17,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:01:18,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:01:20,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2021-11-05 20:01:20,218 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2021-11-05 20:01:20,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:01:20,284 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:01:20,609 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2021-11-05 20:01:20,609 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2021-11-05 20:01:20,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:01:20,862 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:01:20,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20 WrapperNode [2021-11-05 20:01:20,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:01:20,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:01:20,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:01:20,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:01:20,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:20,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:22,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:01:22,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:01:22,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:01:22,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:01:22,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:22,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:22,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:22,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:23,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:23,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:23,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:24,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:01:24,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:01:24,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:01:24,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:01:24,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (1/1) ... [2021-11-05 20:01:24,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:01:24,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:01:24,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-05 20:01:24,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-05 20:01:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:01:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:01:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:01:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:01:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:01:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:01:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:01:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:01:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:01:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:01:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:01:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:01:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:01:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:01:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:03:59,965 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#6: ldv_switch_1_#res := 0; [2021-11-05 20:03:59,965 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#7: ldv_switch_1_#res := 0; [2021-11-05 20:03:59,965 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-05 20:03:59,966 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#5: ldv_switch_1_#res := 0; [2021-11-05 20:03:59,966 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:03:59,966 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:03:59,966 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:03:59,967 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-05 20:03:59,967 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-05 20:03:59,967 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:03:59,967 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#8: ldv_switch_1_#res := 0; [2021-11-05 20:03:59,968 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 20:03:59,969 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:03:59,970 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:04:00,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:04:00,000 INFO L299 CfgBuilder]: Removed 10743 assume(true) statements. [2021-11-05 20:04:00,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:04:00 BoogieIcfgContainer [2021-11-05 20:04:00,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:04:00,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:04:00,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:04:00,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:04:00,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:01:17" (1/3) ... [2021-11-05 20:04:00,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2991a1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:04:00, skipping insertion in model container [2021-11-05 20:04:00,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:01:20" (2/3) ... [2021-11-05 20:04:00,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2991a1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:04:00, skipping insertion in model container [2021-11-05 20:04:00,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:04:00" (3/3) ... [2021-11-05 20:04:00,015 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2021-11-05 20:04:00,018 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:04:00,019 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-05 20:04:00,079 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:04:00,084 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-05 20:04:00,085 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-05 20:04:00,180 INFO L276 IsEmpty]: Start isEmpty. Operand has 10276 states, 10256 states have (on average 1.3043096723868954) internal successors, (13377), 10275 states have internal predecessors, (13377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:00,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-05 20:04:00,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:04:00,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:04:00,205 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 20:04:00,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:04:00,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1813481632, now seen corresponding path program 1 times [2021-11-05 20:04:00,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:04:00,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174699643] [2021-11-05 20:04:00,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:04:00,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:04:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:04:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:04:01,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:04:01,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174699643] [2021-11-05 20:04:01,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174699643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:04:01,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:04:01,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:04:01,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318782463] [2021-11-05 20:04:01,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:04:01,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:04:01,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:04:01,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:04:01,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:01,403 INFO L87 Difference]: Start difference. First operand has 10276 states, 10256 states have (on average 1.3043096723868954) internal successors, (13377), 10275 states have internal predecessors, (13377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:03,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:04:04,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:04:04,599 INFO L93 Difference]: Finished difference Result 28517 states and 37127 transitions. [2021-11-05 20:04:04,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:04:04,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-05 20:04:04,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:04:04,681 INFO L225 Difference]: With dead ends: 28517 [2021-11-05 20:04:04,681 INFO L226 Difference]: Without dead ends: 18162 [2021-11-05 20:04:04,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:04,714 INFO L933 BasicCegarLoop]: 13300 mSDtfsCounter, 10861 mSDsluCounter, 13254 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2586.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10861 SdHoareTripleChecker+Valid, 26554 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 47.77ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2702.55ms IncrementalHoareTripleChecker+Time [2021-11-05 20:04:04,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10861 Valid, 26554 Invalid, 75 Unknown, 0 Unchecked, 47.77ms Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 2702.55ms Time] [2021-11-05 20:04:04,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18162 states. [2021-11-05 20:04:05,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18162 to 18124. [2021-11-05 20:04:05,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18124 states, 18104 states have (on average 1.2887207247017234) internal successors, (23331), 18123 states have internal predecessors, (23331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18124 states to 18124 states and 23331 transitions. [2021-11-05 20:04:05,260 INFO L78 Accepts]: Start accepts. Automaton has 18124 states and 23331 transitions. Word has length 140 [2021-11-05 20:04:05,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:04:05,261 INFO L470 AbstractCegarLoop]: Abstraction has 18124 states and 23331 transitions. [2021-11-05 20:04:05,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:05,262 INFO L276 IsEmpty]: Start isEmpty. Operand 18124 states and 23331 transitions. [2021-11-05 20:04:05,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-05 20:04:05,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:04:05,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:04:05,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:04:05,266 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 20:04:05,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:04:05,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1060683067, now seen corresponding path program 1 times [2021-11-05 20:04:05,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:04:05,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504816280] [2021-11-05 20:04:05,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:04:05,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:04:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:04:05,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:04:05,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:04:05,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504816280] [2021-11-05 20:04:05,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504816280] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:04:05,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:04:05,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:04:05,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564418436] [2021-11-05 20:04:05,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:04:05,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:04:05,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:04:05,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:04:05,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:05,826 INFO L87 Difference]: Start difference. First operand 18124 states and 23331 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:08,011 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:04:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:04:09,414 INFO L93 Difference]: Finished difference Result 52936 states and 68169 transitions. [2021-11-05 20:04:09,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:04:09,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-05 20:04:09,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:04:09,525 INFO L225 Difference]: With dead ends: 52936 [2021-11-05 20:04:09,526 INFO L226 Difference]: Without dead ends: 35120 [2021-11-05 20:04:09,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:09,563 INFO L933 BasicCegarLoop]: 12784 mSDtfsCounter, 11864 mSDsluCounter, 12707 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2724.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11864 SdHoareTripleChecker+Valid, 25491 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.09ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2838.06ms IncrementalHoareTripleChecker+Time [2021-11-05 20:04:09,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11864 Valid, 25491 Invalid, 93 Unknown, 0 Unchecked, 31.09ms Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 1 Unknown, 0 Unchecked, 2838.06ms Time] [2021-11-05 20:04:09,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35120 states. [2021-11-05 20:04:10,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35120 to 35072. [2021-11-05 20:04:10,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35072 states, 35052 states have (on average 1.2879150975693257) internal successors, (45144), 35071 states have internal predecessors, (45144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:10,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35072 states to 35072 states and 45144 transitions. [2021-11-05 20:04:10,414 INFO L78 Accepts]: Start accepts. Automaton has 35072 states and 45144 transitions. Word has length 143 [2021-11-05 20:04:10,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:04:10,416 INFO L470 AbstractCegarLoop]: Abstraction has 35072 states and 45144 transitions. [2021-11-05 20:04:10,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:10,417 INFO L276 IsEmpty]: Start isEmpty. Operand 35072 states and 45144 transitions. [2021-11-05 20:04:10,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-05 20:04:10,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:04:10,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:04:10,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:04:10,422 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 20:04:10,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:04:10,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1869724388, now seen corresponding path program 1 times [2021-11-05 20:04:10,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:04:10,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999196528] [2021-11-05 20:04:10,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:04:10,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:04:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:04:11,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:04:11,023 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:04:11,023 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999196528] [2021-11-05 20:04:11,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999196528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:04:11,023 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:04:11,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:04:11,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937543663] [2021-11-05 20:04:11,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:04:11,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:04:11,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:04:11,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:04:11,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:11,027 INFO L87 Difference]: Start difference. First operand 35072 states and 45144 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:13,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:04:14,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:04:14,770 INFO L93 Difference]: Finished difference Result 103088 states and 132642 transitions. [2021-11-05 20:04:14,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:04:14,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2021-11-05 20:04:14,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:04:14,933 INFO L225 Difference]: With dead ends: 103088 [2021-11-05 20:04:14,934 INFO L226 Difference]: Without dead ends: 68324 [2021-11-05 20:04:15,005 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:15,009 INFO L933 BasicCegarLoop]: 13352 mSDtfsCounter, 11902 mSDsluCounter, 12708 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2718.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11902 SdHoareTripleChecker+Valid, 26060 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.44ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2827.20ms IncrementalHoareTripleChecker+Time [2021-11-05 20:04:15,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11902 Valid, 26060 Invalid, 93 Unknown, 0 Unchecked, 22.44ms Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 1 Unknown, 0 Unchecked, 2827.20ms Time] [2021-11-05 20:04:15,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68324 states. [2021-11-05 20:04:16,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68324 to 68272. [2021-11-05 20:04:16,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68272 states, 68252 states have (on average 1.2862626736212859) internal successors, (87790), 68271 states have internal predecessors, (87790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68272 states to 68272 states and 87790 transitions. [2021-11-05 20:04:16,443 INFO L78 Accepts]: Start accepts. Automaton has 68272 states and 87790 transitions. Word has length 144 [2021-11-05 20:04:16,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:04:16,444 INFO L470 AbstractCegarLoop]: Abstraction has 68272 states and 87790 transitions. [2021-11-05 20:04:16,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:16,444 INFO L276 IsEmpty]: Start isEmpty. Operand 68272 states and 87790 transitions. [2021-11-05 20:04:16,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-05 20:04:16,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:04:16,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:04:16,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:04:16,455 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 20:04:16,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:04:16,455 INFO L85 PathProgramCache]: Analyzing trace with hash 752824777, now seen corresponding path program 1 times [2021-11-05 20:04:16,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:04:16,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486520233] [2021-11-05 20:04:16,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:04:16,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:04:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:04:16,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:04:16,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:04:16,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486520233] [2021-11-05 20:04:16,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486520233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:04:16,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:04:16,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:04:16,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284285362] [2021-11-05 20:04:16,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:04:16,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:04:16,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:04:16,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:04:16,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:16,959 INFO L87 Difference]: Start difference. First operand 68272 states and 87790 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:19,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:04:21,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:04:21,572 INFO L93 Difference]: Finished difference Result 189316 states and 243232 transitions. [2021-11-05 20:04:21,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:04:21,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 148 [2021-11-05 20:04:21,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:04:21,911 INFO L225 Difference]: With dead ends: 189316 [2021-11-05 20:04:21,911 INFO L226 Difference]: Without dead ends: 121352 [2021-11-05 20:04:22,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:22,011 INFO L933 BasicCegarLoop]: 14654 mSDtfsCounter, 9979 mSDsluCounter, 12735 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2581.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9979 SdHoareTripleChecker+Valid, 27389 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.09ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2671.93ms IncrementalHoareTripleChecker+Time [2021-11-05 20:04:22,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9979 Valid, 27389 Invalid, 75 Unknown, 0 Unchecked, 19.09ms Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 2671.93ms Time] [2021-11-05 20:04:22,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121352 states. [2021-11-05 20:04:24,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121352 to 121284. [2021-11-05 20:04:24,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121284 states, 121264 states have (on average 1.2835961208602717) internal successors, (155654), 121283 states have internal predecessors, (155654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:24,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121284 states to 121284 states and 155654 transitions. [2021-11-05 20:04:24,788 INFO L78 Accepts]: Start accepts. Automaton has 121284 states and 155654 transitions. Word has length 148 [2021-11-05 20:04:24,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:04:24,788 INFO L470 AbstractCegarLoop]: Abstraction has 121284 states and 155654 transitions. [2021-11-05 20:04:24,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 121284 states and 155654 transitions. [2021-11-05 20:04:24,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-05 20:04:24,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:04:24,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:04:24,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:04:24,796 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 20:04:24,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:04:24,797 INFO L85 PathProgramCache]: Analyzing trace with hash -990539591, now seen corresponding path program 1 times [2021-11-05 20:04:24,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:04:24,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020704485] [2021-11-05 20:04:24,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:04:24,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:04:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:04:25,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:04:25,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:04:25,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020704485] [2021-11-05 20:04:25,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020704485] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:04:25,413 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:04:25,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:04:25,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204024896] [2021-11-05 20:04:25,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:04:25,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:04:25,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:04:25,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:04:25,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:25,414 INFO L87 Difference]: Start difference. First operand 121284 states and 155654 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:27,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:04:31,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:04:31,642 INFO L93 Difference]: Finished difference Result 333398 states and 428515 transitions. [2021-11-05 20:04:31,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:04:31,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2021-11-05 20:04:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:04:32,161 INFO L225 Difference]: With dead ends: 333398 [2021-11-05 20:04:32,162 INFO L226 Difference]: Without dead ends: 212422 [2021-11-05 20:04:32,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:32,317 INFO L933 BasicCegarLoop]: 17098 mSDtfsCounter, 10052 mSDsluCounter, 12734 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2549.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10052 SdHoareTripleChecker+Valid, 29832 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.22ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2649.95ms IncrementalHoareTripleChecker+Time [2021-11-05 20:04:32,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10052 Valid, 29832 Invalid, 75 Unknown, 0 Unchecked, 22.22ms Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 2649.95ms Time] [2021-11-05 20:04:32,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212422 states. [2021-11-05 20:04:36,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212422 to 212356. [2021-11-05 20:04:36,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212356 states, 212336 states have (on average 1.285688719764901) internal successors, (272998), 212355 states have internal predecessors, (272998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212356 states to 212356 states and 272998 transitions. [2021-11-05 20:04:37,417 INFO L78 Accepts]: Start accepts. Automaton has 212356 states and 272998 transitions. Word has length 154 [2021-11-05 20:04:37,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:04:37,417 INFO L470 AbstractCegarLoop]: Abstraction has 212356 states and 272998 transitions. [2021-11-05 20:04:37,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 212356 states and 272998 transitions. [2021-11-05 20:04:37,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-05 20:04:37,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:04:37,434 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:04:37,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:04:37,434 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 20:04:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:04:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash 291356204, now seen corresponding path program 1 times [2021-11-05 20:04:37,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:04:37,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26530512] [2021-11-05 20:04:37,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:04:37,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:04:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:04:37,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:04:37,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:04:37,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26530512] [2021-11-05 20:04:37,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26530512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:04:37,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:04:37,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:04:37,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121023198] [2021-11-05 20:04:37,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:04:37,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:04:37,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:04:37,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:04:37,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:04:37,853 INFO L87 Difference]: Start difference. First operand 212356 states and 272998 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 20:04:40,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []