./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-ethernet-fealnx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-ethernet-fealnx.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 a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 23:25:32,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:25:32,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:25:32,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:25:32,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:25:32,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:25:32,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:25:32,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:25:32,769 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:25:32,772 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:25:32,773 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:25:32,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:25:32,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:25:32,776 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:25:32,778 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:25:32,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:25:32,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:25:32,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:25:32,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:25:32,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:25:32,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:25:32,794 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:25:32,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:25:32,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:25:32,802 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:25:32,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:25:32,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:25:32,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:25:32,804 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:25:32,805 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:25:32,805 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:25:32,806 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:25:32,807 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:25:32,807 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:25:32,808 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:25:32,809 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:25:32,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:25:32,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:25:32,809 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:25:32,810 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:25:32,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:25:32,812 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 23:25:32,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:25:32,842 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:25:32,842 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:25:32,842 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:25:32,844 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:25:32,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:25:32,844 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:25:32,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:25:32,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:25:32,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:25:32,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:25:32,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:25:32,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:25:32,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:25:32,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:25:32,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:25:32,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:25:32,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:25:32,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:25:32,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:25:32,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:25:32,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:25:32,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:25:32,847 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:25:32,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:25:32,848 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:25:32,848 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:25:32,849 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:25:32,849 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:25:32,850 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 [2021-11-02 23:25:33,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:25:33,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:25:33,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:25:33,096 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:25:33,097 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:25:33,098 INFO L432 ainManager$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-ethernet-fealnx.cil.i [2021-11-02 23:25:33,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057dd21fb/9bdd2bfe786646c7bbec798d84a6d010/FLAG837efadb4 [2021-11-02 23:25:33,787 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:25:33,788 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-ethernet-fealnx.cil.i [2021-11-02 23:25:33,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057dd21fb/9bdd2bfe786646c7bbec798d84a6d010/FLAG837efadb4 [2021-11-02 23:25:33,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/057dd21fb/9bdd2bfe786646c7bbec798d84a6d010 [2021-11-02 23:25:33,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:25:33,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:25:33,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:25:33,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:25:33,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:25:33,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:33" (1/1) ... [2021-11-02 23:25:33,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40da6109 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:33, skipping insertion in model container [2021-11-02 23:25:33,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:33" (1/1) ... [2021-11-02 23:25:33,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:25:34,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:25:36,310 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-ethernet-fealnx.cil.i[320486,320499] [2021-11-02 23:25:36,313 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-ethernet-fealnx.cil.i[320631,320644] [2021-11-02 23:25:36,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:25:36,374 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:25:36,597 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-ethernet-fealnx.cil.i[320486,320499] [2021-11-02 23:25:36,598 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-ethernet-fealnx.cil.i[320631,320644] [2021-11-02 23:25:36,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:25:36,739 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:25:36,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36 WrapperNode [2021-11-02 23:25:36,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:25:36,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:25:36,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:25:36,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:25:36,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:36,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:37,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:25:37,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:25:37,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:25:37,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:25:37,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:37,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:37,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:37,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:37,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:37,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:37,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:37,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:25:37,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:25:37,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:25:37,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:25:37,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (1/1) ... [2021-11-02 23:25:37,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:25:37,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 23:25:37,773 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) [2021-11-02 23:25:37,780 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 [2021-11-02 23:25:37,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:25:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 23:25:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 23:25:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:25:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:25:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:25:37,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:25:37,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:25:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 23:25:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 23:25:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:25:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:25:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:25:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:25:37,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:25:41,606 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-02 23:25:41,607 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-02 23:25:41,607 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-02 23:25:41,607 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-02 23:25:41,608 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-02 23:25:41,608 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-02 23:25:41,629 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:25:41,630 INFO L299 CfgBuilder]: Removed 3782 assume(true) statements. [2021-11-02 23:25:41,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:41 BoogieIcfgContainer [2021-11-02 23:25:41,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:25:41,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:25:41,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:25:41,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:25:41,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:33" (1/3) ... [2021-11-02 23:25:41,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b86aeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:41, skipping insertion in model container [2021-11-02 23:25:41,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:36" (2/3) ... [2021-11-02 23:25:41,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b86aeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:25:41, skipping insertion in model container [2021-11-02 23:25:41,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:25:41" (3/3) ... [2021-11-02 23:25:41,643 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-02 23:25:41,647 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:25:41,648 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-02 23:25:41,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:25:41,706 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 [2021-11-02 23:25:41,706 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-02 23:25:41,752 INFO L276 IsEmpty]: Start isEmpty. Operand has 3583 states, 3572 states have (on average 1.3401455767077268) internal successors, (4787), 3582 states have internal predecessors, (4787), 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) [2021-11-02 23:25:41,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-02 23:25:41,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:25:41,768 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] [2021-11-02 23:25:41,769 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:25:41,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1143337837, now seen corresponding path program 1 times [2021-11-02 23:25:41,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:25:41,779 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066099991] [2021-11-02 23:25:41,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:41,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:25:42,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:42,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:42,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:25:42,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066099991] [2021-11-02 23:25:42,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066099991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:42,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:42,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:25:42,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322239617] [2021-11-02 23:25:42,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:25:42,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:25:42,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:25:42,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:25:42,436 INFO L87 Difference]: Start difference. First operand has 3583 states, 3572 states have (on average 1.3401455767077268) internal successors, (4787), 3582 states have internal predecessors, (4787), 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 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-02 23:25:44,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:25:45,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:25:58,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:25:58,817 INFO L93 Difference]: Finished difference Result 9911 states and 13262 transitions. [2021-11-02 23:25:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:25:58,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-02 23:25:58,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:25:58,857 INFO L225 Difference]: With dead ends: 9911 [2021-11-02 23:25:58,857 INFO L226 Difference]: Without dead ends: 6078 [2021-11-02 23:25:58,868 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.05ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:25:58,870 INFO L933 BasicCegarLoop]: 137 mSDtfsCounter, 4058 mSDsluCounter, 4427 mSDsCounter, 0 mSdLazyCounter, 8919 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13955.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 8933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.88ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 8919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15738.86ms IncrementalHoareTripleChecker+Time [2021-11-02 23:25:58,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4058 Valid, 264 Invalid, 8933 Unknown, 0 Unchecked, 40.88ms Time], IncrementalHoareTripleChecker [14 Valid, 8919 Invalid, 0 Unknown, 0 Unchecked, 15738.86ms Time] [2021-11-02 23:25:58,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6078 states. [2021-11-02 23:25:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6078 to 5897. [2021-11-02 23:25:59,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5897 states, 5886 states have (on average 1.3134556574923548) internal successors, (7731), 5896 states have internal predecessors, (7731), 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) [2021-11-02 23:25:59,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 7731 transitions. [2021-11-02 23:25:59,068 INFO L78 Accepts]: Start accepts. Automaton has 5897 states and 7731 transitions. Word has length 62 [2021-11-02 23:25:59,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:25:59,070 INFO L470 AbstractCegarLoop]: Abstraction has 5897 states and 7731 transitions. [2021-11-02 23:25:59,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-02 23:25:59,071 INFO L276 IsEmpty]: Start isEmpty. Operand 5897 states and 7731 transitions. [2021-11-02 23:25:59,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-02 23:25:59,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:25:59,077 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] [2021-11-02 23:25:59,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:25:59,078 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:25:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:25:59,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1561654553, now seen corresponding path program 1 times [2021-11-02 23:25:59,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:25:59,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53345656] [2021-11-02 23:25:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:25:59,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:25:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:25:59,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:25:59,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:25:59,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53345656] [2021-11-02 23:25:59,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53345656] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:25:59,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:25:59,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:25:59,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474598286] [2021-11-02 23:25:59,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:25:59,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:25:59,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:25:59,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:25:59,355 INFO L87 Difference]: Start difference. First operand 5897 states and 7731 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-02 23:26:01,271 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:12,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:12,767 INFO L93 Difference]: Finished difference Result 16499 states and 21609 transitions. [2021-11-02 23:26:12,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:26:12,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-02 23:26:12,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:12,799 INFO L225 Difference]: With dead ends: 16499 [2021-11-02 23:26:12,800 INFO L226 Difference]: Without dead ends: 10678 [2021-11-02 23:26:12,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:26:12,813 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3721 mSDsluCounter, 4156 mSDsCounter, 0 mSdLazyCounter, 8596 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11193.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3721 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.21ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 8596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12832.01ms IncrementalHoareTripleChecker+Time [2021-11-02 23:26:12,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3721 Valid, 0 Invalid, 8609 Unknown, 0 Unchecked, 23.21ms Time], IncrementalHoareTripleChecker [13 Valid, 8596 Invalid, 0 Unknown, 0 Unchecked, 12832.01ms Time] [2021-11-02 23:26:12,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2021-11-02 23:26:13,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 10432. [2021-11-02 23:26:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10432 states, 10421 states have (on average 1.3129258228576912) internal successors, (13682), 10431 states have internal predecessors, (13682), 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) [2021-11-02 23:26:13,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10432 states to 10432 states and 13682 transitions. [2021-11-02 23:26:13,068 INFO L78 Accepts]: Start accepts. Automaton has 10432 states and 13682 transitions. Word has length 68 [2021-11-02 23:26:13,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:13,068 INFO L470 AbstractCegarLoop]: Abstraction has 10432 states and 13682 transitions. [2021-11-02 23:26:13,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-02 23:26:13,068 INFO L276 IsEmpty]: Start isEmpty. Operand 10432 states and 13682 transitions. [2021-11-02 23:26:13,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-02 23:26:13,072 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:26:13,072 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] [2021-11-02 23:26:13,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:26:13,072 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:26:13,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:13,073 INFO L85 PathProgramCache]: Analyzing trace with hash 228350482, now seen corresponding path program 1 times [2021-11-02 23:26:13,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:13,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003261583] [2021-11-02 23:26:13,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:13,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:13,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:13,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:13,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003261583] [2021-11-02 23:26:13,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003261583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:13,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:13,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:26:13,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137803224] [2021-11-02 23:26:13,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:26:13,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:13,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:26:13,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:26:13,279 INFO L87 Difference]: Start difference. First operand 10432 states and 13682 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-02 23:26:14,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:17,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:28,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:28,337 INFO L93 Difference]: Finished difference Result 24432 states and 32108 transitions. [2021-11-02 23:26:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:26:28,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2021-11-02 23:26:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:28,383 INFO L225 Difference]: With dead ends: 24432 [2021-11-02 23:26:28,383 INFO L226 Difference]: Without dead ends: 14076 [2021-11-02 23:26:28,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:26:28,403 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1746 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 9424 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13027.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.82ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 9424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14497.69ms IncrementalHoareTripleChecker+Time [2021-11-02 23:26:28,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1746 Valid, 0 Invalid, 9442 Unknown, 0 Unchecked, 23.82ms Time], IncrementalHoareTripleChecker [17 Valid, 9424 Invalid, 1 Unknown, 0 Unchecked, 14497.69ms Time] [2021-11-02 23:26:28,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14076 states. [2021-11-02 23:26:28,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14076 to 14046. [2021-11-02 23:26:28,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14046 states, 14035 states have (on average 1.312718204488778) internal successors, (18424), 14045 states have internal predecessors, (18424), 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) [2021-11-02 23:26:28,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14046 states to 14046 states and 18424 transitions. [2021-11-02 23:26:28,737 INFO L78 Accepts]: Start accepts. Automaton has 14046 states and 18424 transitions. Word has length 71 [2021-11-02 23:26:28,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:28,739 INFO L470 AbstractCegarLoop]: Abstraction has 14046 states and 18424 transitions. [2021-11-02 23:26:28,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-02 23:26:28,740 INFO L276 IsEmpty]: Start isEmpty. Operand 14046 states and 18424 transitions. [2021-11-02 23:26:28,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-02 23:26:28,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:26:28,742 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-02 23:26:28,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:26:28,743 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:26:28,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:28,743 INFO L85 PathProgramCache]: Analyzing trace with hash 968917594, now seen corresponding path program 1 times [2021-11-02 23:26:28,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:28,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285153004] [2021-11-02 23:26:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:28,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:28,908 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:28,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285153004] [2021-11-02 23:26:28,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285153004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:28,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:28,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:26:28,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114339887] [2021-11-02 23:26:28,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:26:28,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:28,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:26:28,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:26:28,911 INFO L87 Difference]: Start difference. First operand 14046 states and 18424 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-02 23:26:43,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:26:43,441 INFO L93 Difference]: Finished difference Result 41946 states and 55062 transitions. [2021-11-02 23:26:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:26:43,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 77 [2021-11-02 23:26:43,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:26:43,514 INFO L225 Difference]: With dead ends: 41946 [2021-11-02 23:26:43,514 INFO L226 Difference]: Without dead ends: 27976 [2021-11-02 23:26:43,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:26:43,544 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4311 mSDsluCounter, 4402 mSDsCounter, 0 mSdLazyCounter, 9360 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12025.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4311 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.76ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13783.62ms IncrementalHoareTripleChecker+Time [2021-11-02 23:26:43,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4311 Valid, 0 Invalid, 9366 Unknown, 0 Unchecked, 19.76ms Time], IncrementalHoareTripleChecker [6 Valid, 9360 Invalid, 0 Unknown, 0 Unchecked, 13783.62ms Time] [2021-11-02 23:26:43,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27976 states. [2021-11-02 23:26:44,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27976 to 27906. [2021-11-02 23:26:44,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27906 states, 27895 states have (on average 1.3134970424807313) internal successors, (36640), 27905 states have internal predecessors, (36640), 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) [2021-11-02 23:26:44,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27906 states to 27906 states and 36640 transitions. [2021-11-02 23:26:44,097 INFO L78 Accepts]: Start accepts. Automaton has 27906 states and 36640 transitions. Word has length 77 [2021-11-02 23:26:44,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:26:44,097 INFO L470 AbstractCegarLoop]: Abstraction has 27906 states and 36640 transitions. [2021-11-02 23:26:44,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-02 23:26:44,098 INFO L276 IsEmpty]: Start isEmpty. Operand 27906 states and 36640 transitions. [2021-11-02 23:26:44,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-02 23:26:44,102 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:26:44,102 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] [2021-11-02 23:26:44,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:26:44,103 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:26:44,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:26:44,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1094154520, now seen corresponding path program 1 times [2021-11-02 23:26:44,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:26:44,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287647029] [2021-11-02 23:26:44,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:26:44,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:26:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:26:44,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:26:44,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:26:44,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287647029] [2021-11-02 23:26:44,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287647029] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:26:44,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:26:44,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:26:44,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655907689] [2021-11-02 23:26:44,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:26:44,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:26:44,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:26:44,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:26:44,249 INFO L87 Difference]: Start difference. First operand 27906 states and 36640 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-02 23:26:46,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:01,403 INFO L93 Difference]: Finished difference Result 77004 states and 101429 transitions. [2021-11-02 23:27:01,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:27:01,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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 84 [2021-11-02 23:27:01,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:01,528 INFO L225 Difference]: With dead ends: 77004 [2021-11-02 23:27:01,528 INFO L226 Difference]: Without dead ends: 49174 [2021-11-02 23:27:01,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.23ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:01,578 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 3794 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 8820 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14373.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3794 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.64ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 8820 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16012.53ms IncrementalHoareTripleChecker+Time [2021-11-02 23:27:01,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3794 Valid, 0 Invalid, 8830 Unknown, 0 Unchecked, 26.64ms Time], IncrementalHoareTripleChecker [9 Valid, 8820 Invalid, 1 Unknown, 0 Unchecked, 16012.53ms Time] [2021-11-02 23:27:01,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49174 states. [2021-11-02 23:27:02,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49174 to 48646. [2021-11-02 23:27:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48646 states, 48635 states have (on average 1.319461293307289) internal successors, (64172), 48645 states have internal predecessors, (64172), 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) [2021-11-02 23:27:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48646 states to 48646 states and 64172 transitions. [2021-11-02 23:27:02,534 INFO L78 Accepts]: Start accepts. Automaton has 48646 states and 64172 transitions. Word has length 84 [2021-11-02 23:27:02,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:02,534 INFO L470 AbstractCegarLoop]: Abstraction has 48646 states and 64172 transitions. [2021-11-02 23:27:02,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 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) [2021-11-02 23:27:02,535 INFO L276 IsEmpty]: Start isEmpty. Operand 48646 states and 64172 transitions. [2021-11-02 23:27:02,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-02 23:27:02,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:27:02,537 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:27:02,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 23:27:02,538 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:27:02,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:02,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1477356694, now seen corresponding path program 1 times [2021-11-02 23:27:02,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:02,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83064013] [2021-11-02 23:27:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:02,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-02 23:27:02,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:02,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83064013] [2021-11-02 23:27:02,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83064013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:02,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:02,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:27:02,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703720871] [2021-11-02 23:27:02,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:27:02,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:02,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:27:02,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:02,672 INFO L87 Difference]: Start difference. First operand 48646 states and 64172 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-11-02 23:27:04,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:06,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:19,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:19,864 INFO L93 Difference]: Finished difference Result 97267 states and 128321 transitions. [2021-11-02 23:27:19,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:27:19,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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 89 [2021-11-02 23:27:19,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:19,961 INFO L225 Difference]: With dead ends: 97267 [2021-11-02 23:27:19,962 INFO L226 Difference]: Without dead ends: 48697 [2021-11-02 23:27:20,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:20,028 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 74 mSDsluCounter, 4375 mSDsCounter, 0 mSdLazyCounter, 8808 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14673.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 8813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.12ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16087.99ms IncrementalHoareTripleChecker+Time [2021-11-02 23:27:20,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 0 Invalid, 8813 Unknown, 0 Unchecked, 29.12ms Time], IncrementalHoareTripleChecker [4 Valid, 8808 Invalid, 1 Unknown, 0 Unchecked, 16087.99ms Time] [2021-11-02 23:27:20,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48697 states. [2021-11-02 23:27:20,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48697 to 48697. [2021-11-02 23:27:21,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48697 states, 48686 states have (on average 1.3192704268167441) internal successors, (64230), 48696 states have internal predecessors, (64230), 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) [2021-11-02 23:27:21,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48697 states to 48697 states and 64230 transitions. [2021-11-02 23:27:21,105 INFO L78 Accepts]: Start accepts. Automaton has 48697 states and 64230 transitions. Word has length 89 [2021-11-02 23:27:21,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:21,106 INFO L470 AbstractCegarLoop]: Abstraction has 48697 states and 64230 transitions. [2021-11-02 23:27:21,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 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) [2021-11-02 23:27:21,106 INFO L276 IsEmpty]: Start isEmpty. Operand 48697 states and 64230 transitions. [2021-11-02 23:27:21,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-02 23:27:21,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:27:21,109 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:27:21,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 23:27:21,110 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:27:21,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:21,110 INFO L85 PathProgramCache]: Analyzing trace with hash 337540895, now seen corresponding path program 1 times [2021-11-02 23:27:21,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:21,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602971337] [2021-11-02 23:27:21,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:21,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:21,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:27:21,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:21,382 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602971337] [2021-11-02 23:27:21,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602971337] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:21,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:21,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:27:21,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267933260] [2021-11-02 23:27:21,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:27:21,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:21,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:27:21,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:21,384 INFO L87 Difference]: Start difference. First operand 48697 states and 64230 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2021-11-02 23:27:23,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:25,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:41,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:41,806 INFO L93 Difference]: Finished difference Result 108425 states and 143276 transitions. [2021-11-02 23:27:41,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:27:41,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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 103 [2021-11-02 23:27:41,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:41,936 INFO L225 Difference]: With dead ends: 108425 [2021-11-02 23:27:41,936 INFO L226 Difference]: Without dead ends: 59855 [2021-11-02 23:27:42,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:42,003 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1749 mSDsluCounter, 4346 mSDsCounter, 0 mSdLazyCounter, 10572 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17129.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.99ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 10572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18988.41ms IncrementalHoareTripleChecker+Time [2021-11-02 23:27:42,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 0 Invalid, 10588 Unknown, 0 Unchecked, 31.99ms Time], IncrementalHoareTripleChecker [15 Valid, 10572 Invalid, 1 Unknown, 0 Unchecked, 18988.41ms Time] [2021-11-02 23:27:42,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59855 states. [2021-11-02 23:27:43,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59855 to 59777. [2021-11-02 23:27:43,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59777 states, 59766 states have (on average 1.3197804771943915) internal successors, (78878), 59776 states have internal predecessors, (78878), 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) [2021-11-02 23:27:43,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59777 states to 59777 states and 78878 transitions. [2021-11-02 23:27:43,201 INFO L78 Accepts]: Start accepts. Automaton has 59777 states and 78878 transitions. Word has length 103 [2021-11-02 23:27:43,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:43,201 INFO L470 AbstractCegarLoop]: Abstraction has 59777 states and 78878 transitions. [2021-11-02 23:27:43,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2021-11-02 23:27:43,201 INFO L276 IsEmpty]: Start isEmpty. Operand 59777 states and 78878 transitions. [2021-11-02 23:27:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-02 23:27:43,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:27:43,204 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:27:43,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 23:27:43,204 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:27:43,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:43,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1534737798, now seen corresponding path program 1 times [2021-11-02 23:27:43,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:43,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149636883] [2021-11-02 23:27:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:43,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-02 23:27:43,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:43,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149636883] [2021-11-02 23:27:43,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149636883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:43,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:43,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:27:43,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342568276] [2021-11-02 23:27:43,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:27:43,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:43,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:27:43,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:43,324 INFO L87 Difference]: Start difference. First operand 59777 states and 78878 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-02 23:27:45,352 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:28:04,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:28:04,742 INFO L93 Difference]: Finished difference Result 177605 states and 234684 transitions. [2021-11-02 23:28:04,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:28:04,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 118 [2021-11-02 23:28:04,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:28:05,034 INFO L225 Difference]: With dead ends: 177605 [2021-11-02 23:28:05,034 INFO L226 Difference]: Without dead ends: 117955 [2021-11-02 23:28:05,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:28:05,275 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4284 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 9420 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17070.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 9424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.34ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19053.63ms IncrementalHoareTripleChecker+Time [2021-11-02 23:28:05,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4284 Valid, 0 Invalid, 9424 Unknown, 0 Unchecked, 35.34ms Time], IncrementalHoareTripleChecker [3 Valid, 9420 Invalid, 1 Unknown, 0 Unchecked, 19053.63ms Time] [2021-11-02 23:28:05,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117955 states. [2021-11-02 23:28:07,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117955 to 117933. [2021-11-02 23:28:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117933 states, 117922 states have (on average 1.3211614457013958) internal successors, (155794), 117932 states have internal predecessors, (155794), 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) [2021-11-02 23:28:08,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117933 states to 117933 states and 155794 transitions. [2021-11-02 23:28:08,161 INFO L78 Accepts]: Start accepts. Automaton has 117933 states and 155794 transitions. Word has length 118 [2021-11-02 23:28:08,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:28:08,161 INFO L470 AbstractCegarLoop]: Abstraction has 117933 states and 155794 transitions. [2021-11-02 23:28:08,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-02 23:28:08,161 INFO L276 IsEmpty]: Start isEmpty. Operand 117933 states and 155794 transitions. [2021-11-02 23:28:08,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-02 23:28:08,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:28:08,165 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:28:08,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 23:28:08,165 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:28:08,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:28:08,166 INFO L85 PathProgramCache]: Analyzing trace with hash -974038020, now seen corresponding path program 1 times [2021-11-02 23:28:08,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:28:08,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694110438] [2021-11-02 23:28:08,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:28:08,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:28:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:28:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-02 23:28:08,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:28:08,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694110438] [2021-11-02 23:28:08,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694110438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:28:08,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:28:08,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:28:08,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084245546] [2021-11-02 23:28:08,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:28:08,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:28:08,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:28:08,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:28:08,467 INFO L87 Difference]: Start difference. First operand 117933 states and 155794 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-02 23:28:10,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:28:33,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:28:33,646 INFO L93 Difference]: Finished difference Result 293965 states and 388564 transitions. [2021-11-02 23:28:33,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:28:33,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 118 [2021-11-02 23:28:33,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:28:34,055 INFO L225 Difference]: With dead ends: 293965 [2021-11-02 23:28:34,055 INFO L226 Difference]: Without dead ends: 175715 [2021-11-02 23:28:34,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:28:34,362 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4280 mSDsluCounter, 4398 mSDsCounter, 0 mSdLazyCounter, 13120 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19175.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4280 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.71ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21425.50ms IncrementalHoareTripleChecker+Time [2021-11-02 23:28:34,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4280 Valid, 0 Invalid, 13123 Unknown, 0 Unchecked, 38.71ms Time], IncrementalHoareTripleChecker [3 Valid, 13120 Invalid, 0 Unknown, 0 Unchecked, 21425.50ms Time] [2021-11-02 23:28:34,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175715 states. [2021-11-02 23:28:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175715 to 175693. [2021-11-02 23:28:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175693 states, 175682 states have (on average 1.321894104119944) internal successors, (232233), 175692 states have internal predecessors, (232233), 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) [2021-11-02 23:28:38,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175693 states to 175693 states and 232233 transitions. [2021-11-02 23:28:38,251 INFO L78 Accepts]: Start accepts. Automaton has 175693 states and 232233 transitions. Word has length 118 [2021-11-02 23:28:38,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:28:38,252 INFO L470 AbstractCegarLoop]: Abstraction has 175693 states and 232233 transitions. [2021-11-02 23:28:38,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-02 23:28:38,252 INFO L276 IsEmpty]: Start isEmpty. Operand 175693 states and 232233 transitions. [2021-11-02 23:28:38,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-02 23:28:38,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:28:38,258 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:28:38,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 23:28:38,259 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:28:38,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:28:38,259 INFO L85 PathProgramCache]: Analyzing trace with hash 507732604, now seen corresponding path program 1 times [2021-11-02 23:28:38,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:28:38,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939108133] [2021-11-02 23:28:38,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:28:38,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:28:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:28:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-02 23:28:38,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:28:38,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939108133] [2021-11-02 23:28:38,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939108133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:28:38,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:28:38,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:28:38,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254106424] [2021-11-02 23:28:38,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:28:38,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:28:38,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:28:38,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:28:38,387 INFO L87 Difference]: Start difference. First operand 175693 states and 232233 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-02 23:28:40,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:06,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:29:06,851 INFO L93 Difference]: Finished difference Result 409293 states and 541106 transitions. [2021-11-02 23:29:06,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:29:06,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 132 [2021-11-02 23:29:06,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:29:07,633 INFO L225 Difference]: With dead ends: 409293 [2021-11-02 23:29:07,633 INFO L226 Difference]: Without dead ends: 233475 [2021-11-02 23:29:07,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:29:07,841 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4278 mSDsluCounter, 4398 mSDsCounter, 0 mSdLazyCounter, 13115 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21013.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4278 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.70ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13115 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23470.35ms IncrementalHoareTripleChecker+Time [2021-11-02 23:29:07,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4278 Valid, 0 Invalid, 13116 Unknown, 0 Unchecked, 43.70ms Time], IncrementalHoareTripleChecker [0 Valid, 13115 Invalid, 1 Unknown, 0 Unchecked, 23470.35ms Time] [2021-11-02 23:29:08,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233475 states. [2021-11-02 23:29:12,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233475 to 175693. [2021-11-02 23:29:12,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175693 states, 175682 states have (on average 1.3218884120171674) internal successors, (232232), 175692 states have internal predecessors, (232232), 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) [2021-11-02 23:29:12,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175693 states to 175693 states and 232232 transitions. [2021-11-02 23:29:12,665 INFO L78 Accepts]: Start accepts. Automaton has 175693 states and 232232 transitions. Word has length 132 [2021-11-02 23:29:12,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:29:12,665 INFO L470 AbstractCegarLoop]: Abstraction has 175693 states and 232232 transitions. [2021-11-02 23:29:12,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2021-11-02 23:29:12,665 INFO L276 IsEmpty]: Start isEmpty. Operand 175693 states and 232232 transitions. [2021-11-02 23:29:12,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-02 23:29:12,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:29:12,670 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:29:12,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 23:29:12,670 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-02 23:29:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:29:12,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1068432382, now seen corresponding path program 1 times [2021-11-02 23:29:12,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:29:12,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392228970] [2021-11-02 23:29:12,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:29:12,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:29:12,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:29:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-02 23:29:12,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:29:12,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392228970] [2021-11-02 23:29:12,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392228970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:29:12,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:29:12,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 23:29:12,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118708648] [2021-11-02 23:29:12,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:29:12,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:29:12,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:29:12,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:29:12,834 INFO L87 Difference]: Start difference. First operand 175693 states and 232232 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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) [2021-11-02 23:29:24,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:29:24,151 INFO L93 Difference]: Finished difference Result 351259 states and 464321 transitions. [2021-11-02 23:29:24,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:29:24,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 132 [2021-11-02 23:29:24,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:29:24,517 INFO L225 Difference]: With dead ends: 351259 [2021-11-02 23:29:24,517 INFO L226 Difference]: Without dead ends: 175693 [2021-11-02 23:29:24,711 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:29:24,712 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4301 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4406 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6162.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4301 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.44ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7077.70ms IncrementalHoareTripleChecker+Time [2021-11-02 23:29:24,712 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4301 Valid, 0 Invalid, 4416 Unknown, 0 Unchecked, 8.44ms Time], IncrementalHoareTripleChecker [10 Valid, 4406 Invalid, 0 Unknown, 0 Unchecked, 7077.70ms Time] [2021-11-02 23:29:24,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175693 states. [2021-11-02 23:29:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175693 to 175693. [2021-11-02 23:29:29,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175693 states, 175682 states have (on average 1.3179267084846484) internal successors, (231536), 175692 states have internal predecessors, (231536), 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)