./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b 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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.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 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:23:26,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:23:26,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:23:26,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:23:26,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:23:26,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:23:26,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:23:26,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:23:26,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:23:26,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:23:26,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:23:26,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:23:26,856 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:23:26,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:23:26,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:23:26,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:23:26,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:23:26,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:23:26,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:23:26,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:23:26,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:23:26,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:23:26,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:23:26,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:23:26,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:23:26,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:23:26,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:23:26,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:23:26,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:23:26,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:23:26,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:23:26,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:23:26,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:23:26,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:23:26,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:23:26,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:23:26,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:23:26,874 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:23:26,874 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:23:26,875 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:23:26,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:23:26,876 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:23:26,903 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:23:26,903 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:23:26,903 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:23:26,904 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:23:26,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:23:26,905 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:23:26,905 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:23:26,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:23:26,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:23:26,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:23:26,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:23:26,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:23:26,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:23:26,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:23:26,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:23:26,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:23:26,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:23:26,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:23:26,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:23:26,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:23:26,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:23:26,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:23:26,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:23:26,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:23:26,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:23:26,908 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:23:26,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:23:26,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:23:26,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:23:26,909 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08c4ab5181b7abd6700c38bd6f4a3ecc0debf94ce89805012c81d15880051c78 [2021-11-04 10:23:27,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:23:27,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:23:27,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:23:27,126 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:23:27,127 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:23:27,128 INFO L432 ainManager$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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-04 10:23:27,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33546f78/c240a7cd08c447feba9cd724d7965930/FLAGf83e7d89b [2021-11-04 10:23:27,871 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:23:27,872 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-04 10:23:27,919 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33546f78/c240a7cd08c447feba9cd724d7965930/FLAGf83e7d89b [2021-11-04 10:23:28,208 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33546f78/c240a7cd08c447feba9cd724d7965930 [2021-11-04 10:23:28,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:23:28,212 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:23:28,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:23:28,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:23:28,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:23:28,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:23:28" (1/1) ... [2021-11-04 10:23:28,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1633263a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:28, skipping insertion in model container [2021-11-04 10:23:28,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:23:28" (1/1) ... [2021-11-04 10:23:28,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:23:28,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:23:32,087 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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-04 10:23:32,091 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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-04 10:23:32,091 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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-04 10:23:32,096 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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-04 10:23:32,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:23:32,248 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:23:32,722 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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445714,445727] [2021-11-04 10:23:32,723 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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[445883,445896] [2021-11-04 10:23:32,723 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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446050,446063] [2021-11-04 10:23:32,724 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-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446218,446231] [2021-11-04 10:23:32,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:23:32,939 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:23:32,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32 WrapperNode [2021-11-04 10:23:32,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:23:32,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:23:32,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:23:32,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:23:32,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:33,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:34,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:23:34,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:23:34,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:23:34,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:23:34,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:34,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:34,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:34,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:35,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:35,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:36,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:36,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:23:36,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:23:36,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:23:36,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:23:36,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (1/1) ... [2021-11-04 10:23:36,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:23:36,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:23:36,549 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) [2021-11-04 10:23:36,567 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 [2021-11-04 10:23:36,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:23:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 10:23:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 10:23:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:23:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:23:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:23:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:23:36,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:23:36,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 10:23:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 10:23:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:23:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:23:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:23:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:23:36,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 10:23:44,746 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 10:23:44,747 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 10:23:44,747 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 10:23:44,747 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 10:23:44,749 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 10:23:44,750 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 10:23:44,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 10:23:44,782 INFO L299 CfgBuilder]: Removed 9514 assume(true) statements. [2021-11-04 10:23:44,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:23:44 BoogieIcfgContainer [2021-11-04 10:23:44,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 10:23:44,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 10:23:44,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 10:23:44,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 10:23:44,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:23:28" (1/3) ... [2021-11-04 10:23:44,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4d6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:23:44, skipping insertion in model container [2021-11-04 10:23:44,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:23:32" (2/3) ... [2021-11-04 10:23:44,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4d6a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:23:44, skipping insertion in model container [2021-11-04 10:23:44,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:23:44" (3/3) ... [2021-11-04 10:23:44,797 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-04 10:23:44,800 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 10:23:44,800 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2021-11-04 10:23:44,852 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 10:23:44,857 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 [2021-11-04 10:23:44,857 INFO L340 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2021-11-04 10:23:44,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 9011 states, 8942 states have (on average 1.3325877879668977) internal successors, (11916), 9010 states have internal predecessors, (11916), 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) [2021-11-04 10:23:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-04 10:23:44,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:23:44,949 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] [2021-11-04 10:23:44,950 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-04 10:23:44,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:23:44,953 INFO L85 PathProgramCache]: Analyzing trace with hash -105954818, now seen corresponding path program 1 times [2021-11-04 10:23:44,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:23:44,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868044198] [2021-11-04 10:23:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:23:44,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:23:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:23:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:23:45,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:23:45,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868044198] [2021-11-04 10:23:45,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868044198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:23:45,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:23:45,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:23:45,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999894344] [2021-11-04 10:23:45,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:23:45,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:23:45,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:23:45,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:23:45,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:23:45,503 INFO L87 Difference]: Start difference. First operand has 9011 states, 8942 states have (on average 1.3325877879668977) internal successors, (11916), 9010 states have internal predecessors, (11916), 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 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-04 10:23:48,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:50,813 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:53,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:55,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:57,174 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:23:59,536 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:01,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:03,606 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:05,515 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:06,911 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:10,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:12,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:20,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:22,572 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:24,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:28,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:30,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:32,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:36,908 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:39,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:44,013 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:46,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:48,636 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:50,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:24:56,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:05,565 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:06,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:25:06,490 INFO L93 Difference]: Finished difference Result 25940 states and 34379 transitions. [2021-11-04 10:25:06,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:25:06,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2021-11-04 10:25:06,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:25:06,573 INFO L225 Difference]: With dead ends: 25940 [2021-11-04 10:25:06,573 INFO L226 Difference]: Without dead ends: 16678 [2021-11-04 10:25:06,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.20ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:25:06,598 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 10739 mSDsluCounter, 11658 mSDsCounter, 0 mSdLazyCounter, 22963 mSolverCounterSat, 18 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75257.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10739 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 23002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.69ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 22963 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80033.88ms IncrementalHoareTripleChecker+Time [2021-11-04 10:25:06,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10739 Valid, 492 Invalid, 23002 Unknown, 0 Unchecked, 56.69ms Time], IncrementalHoareTripleChecker [18 Valid, 22963 Invalid, 21 Unknown, 0 Unchecked, 80033.88ms Time] [2021-11-04 10:25:06,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16678 states. [2021-11-04 10:25:06,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16678 to 16124. [2021-11-04 10:25:06,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16124 states, 16055 states have (on average 1.3092494549984428) internal successors, (21020), 16123 states have internal predecessors, (21020), 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) [2021-11-04 10:25:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16124 states to 16124 states and 21020 transitions. [2021-11-04 10:25:07,043 INFO L78 Accepts]: Start accepts. Automaton has 16124 states and 21020 transitions. Word has length 73 [2021-11-04 10:25:07,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:25:07,045 INFO L470 AbstractCegarLoop]: Abstraction has 16124 states and 21020 transitions. [2021-11-04 10:25:07,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-04 10:25:07,047 INFO L276 IsEmpty]: Start isEmpty. Operand 16124 states and 21020 transitions. [2021-11-04 10:25:07,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-04 10:25:07,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:25:07,054 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] [2021-11-04 10:25:07,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 10:25:07,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-04 10:25:07,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:25:07,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1581454207, now seen corresponding path program 1 times [2021-11-04 10:25:07,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:25:07,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464943154] [2021-11-04 10:25:07,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:25:07,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:25:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:25:07,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:25:07,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:25:07,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464943154] [2021-11-04 10:25:07,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464943154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:25:07,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:25:07,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:25:07,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701423771] [2021-11-04 10:25:07,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:25:07,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:25:07,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:25:07,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:25:07,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:25:07,336 INFO L87 Difference]: Start difference. First operand 16124 states and 21020 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-04 10:25:10,991 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:13,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:15,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:17,503 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:19,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:22,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:24,206 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:26,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:28,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:30,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:34,415 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:41,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:44,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:47,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:51,031 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:53,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:25:58,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:00,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:06,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:07,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:10,290 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:12,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:19,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:21,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:23,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:27,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:29,368 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:39,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:41,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:26:41,142 INFO L93 Difference]: Finished difference Result 47364 states and 61876 transitions. [2021-11-04 10:26:41,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:26:41,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-04 10:26:41,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:26:41,260 INFO L225 Difference]: With dead ends: 47364 [2021-11-04 10:26:41,260 INFO L226 Difference]: Without dead ends: 31396 [2021-11-04 10:26:41,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.08ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:26:41,287 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10604 mSDsluCounter, 11229 mSDsCounter, 0 mSdLazyCounter, 22722 mSolverCounterSat, 7 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86936.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10604 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.85ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22722 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92554.97ms IncrementalHoareTripleChecker+Time [2021-11-04 10:26:41,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10604 Valid, 0 Invalid, 22749 Unknown, 0 Unchecked, 45.85ms Time], IncrementalHoareTripleChecker [7 Valid, 22722 Invalid, 20 Unknown, 0 Unchecked, 92554.97ms Time] [2021-11-04 10:26:41,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31396 states. [2021-11-04 10:26:41,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31396 to 31186. [2021-11-04 10:26:41,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31186 states, 31117 states have (on average 1.3110839733907511) internal successors, (40797), 31185 states have internal predecessors, (40797), 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) [2021-11-04 10:26:41,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31186 states to 31186 states and 40797 transitions. [2021-11-04 10:26:41,858 INFO L78 Accepts]: Start accepts. Automaton has 31186 states and 40797 transitions. Word has length 75 [2021-11-04 10:26:41,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:26:41,860 INFO L470 AbstractCegarLoop]: Abstraction has 31186 states and 40797 transitions. [2021-11-04 10:26:41,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-04 10:26:41,860 INFO L276 IsEmpty]: Start isEmpty. Operand 31186 states and 40797 transitions. [2021-11-04 10:26:41,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-04 10:26:41,861 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:26:41,861 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] [2021-11-04 10:26:41,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 10:26:41,862 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-04 10:26:41,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:26:41,863 INFO L85 PathProgramCache]: Analyzing trace with hash 428041036, now seen corresponding path program 1 times [2021-11-04 10:26:41,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:26:41,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979729840] [2021-11-04 10:26:41,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:26:41,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:26:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:26:42,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:26:42,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:26:42,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979729840] [2021-11-04 10:26:42,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979729840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:26:42,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:26:42,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:26:42,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293102892] [2021-11-04 10:26:42,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:26:42,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:26:42,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:26:42,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:26:42,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:26:42,127 INFO L87 Difference]: Start difference. First operand 31186 states and 40797 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-04 10:26:45,599 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:48,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:50,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:53,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:55,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:26:58,163 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:01,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:03,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:06,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:08,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:11,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:13,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:16,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:18,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:26,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:28,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:37,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:44,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:46,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:49,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:51,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:52,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:54,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:27:58,485 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:02,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:12,970 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:15,615 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:15,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:28:15,886 INFO L93 Difference]: Finished difference Result 87308 states and 114162 transitions. [2021-11-04 10:28:15,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:28:15,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-04 10:28:15,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:28:16,019 INFO L225 Difference]: With dead ends: 87308 [2021-11-04 10:28:16,019 INFO L226 Difference]: Without dead ends: 56278 [2021-11-04 10:28:16,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:28:16,090 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9176 mSDsluCounter, 11198 mSDsCounter, 0 mSdLazyCounter, 22970 mSolverCounterSat, 25 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86193.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9176 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.66ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 22970 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92256.77ms IncrementalHoareTripleChecker+Time [2021-11-04 10:28:16,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9176 Valid, 0 Invalid, 23016 Unknown, 0 Unchecked, 48.66ms Time], IncrementalHoareTripleChecker [25 Valid, 22970 Invalid, 21 Unknown, 0 Unchecked, 92256.77ms Time] [2021-11-04 10:28:16,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56278 states. [2021-11-04 10:28:17,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56278 to 55143. [2021-11-04 10:28:17,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55143 states, 55074 states have (on average 1.3107092275847043) internal successors, (72186), 55142 states have internal predecessors, (72186), 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) [2021-11-04 10:28:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55143 states to 55143 states and 72186 transitions. [2021-11-04 10:28:17,227 INFO L78 Accepts]: Start accepts. Automaton has 55143 states and 72186 transitions. Word has length 79 [2021-11-04 10:28:17,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:28:17,228 INFO L470 AbstractCegarLoop]: Abstraction has 55143 states and 72186 transitions. [2021-11-04 10:28:17,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-04 10:28:17,228 INFO L276 IsEmpty]: Start isEmpty. Operand 55143 states and 72186 transitions. [2021-11-04 10:28:17,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-04 10:28:17,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:28:17,230 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] [2021-11-04 10:28:17,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 10:28:17,230 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-04 10:28:17,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:28:17,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1875511950, now seen corresponding path program 1 times [2021-11-04 10:28:17,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:28:17,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698022213] [2021-11-04 10:28:17,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:28:17,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:28:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:28:17,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:28:17,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:28:17,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698022213] [2021-11-04 10:28:17,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698022213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:28:17,482 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:28:17,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-04 10:28:17,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584257185] [2021-11-04 10:28:17,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:28:17,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-04 10:28:17,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:28:17,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-04 10:28:17,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-04 10:28:17,484 INFO L87 Difference]: Start difference. First operand 55143 states and 72186 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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) [2021-11-04 10:28:21,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:24,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:27,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:29,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:32,194 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:34,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:38,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:43,033 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:45,412 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:49,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:51,388 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:53,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:55,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:28:58,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:00,100 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:06,283 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:08,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:10,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:18,329 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:23,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:29,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:43,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:46,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:53,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:55,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:57,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:29:59,678 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:01,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:05,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:20,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:21,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:30:21,851 INFO L93 Difference]: Finished difference Result 152004 states and 198965 transitions. [2021-11-04 10:30:21,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:30:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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 83 [2021-11-04 10:30:21,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:30:22,064 INFO L225 Difference]: With dead ends: 152004 [2021-11-04 10:30:22,065 INFO L226 Difference]: Without dead ends: 97017 [2021-11-04 10:30:22,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.03ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-04 10:30:22,165 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 27934 mSDsluCounter, 23627 mSDsCounter, 0 mSdLazyCounter, 35568 mSolverCounterSat, 71 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112195.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 27934 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 130.08ms SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 35568 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121339.22ms IncrementalHoareTripleChecker+Time [2021-11-04 10:30:22,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27934 Valid, 0 Invalid, 35664 Unknown, 0 Unchecked, 130.08ms Time], IncrementalHoareTripleChecker [71 Valid, 35568 Invalid, 25 Unknown, 0 Unchecked, 121339.22ms Time] [2021-11-04 10:30:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97017 states. [2021-11-04 10:30:23,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97017 to 93109. [2021-11-04 10:30:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93109 states, 93040 states have (on average 1.3105331040412727) internal successors, (121932), 93108 states have internal predecessors, (121932), 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) [2021-11-04 10:30:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93109 states to 93109 states and 121932 transitions. [2021-11-04 10:30:24,375 INFO L78 Accepts]: Start accepts. Automaton has 93109 states and 121932 transitions. Word has length 83 [2021-11-04 10:30:24,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:30:24,375 INFO L470 AbstractCegarLoop]: Abstraction has 93109 states and 121932 transitions. [2021-11-04 10:30:24,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 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) [2021-11-04 10:30:24,376 INFO L276 IsEmpty]: Start isEmpty. Operand 93109 states and 121932 transitions. [2021-11-04 10:30:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-04 10:30:24,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:30:24,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:30:24,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 10:30:24,378 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-04 10:30:24,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:30:24,379 INFO L85 PathProgramCache]: Analyzing trace with hash 313540578, now seen corresponding path program 1 times [2021-11-04 10:30:24,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:30:24,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050933897] [2021-11-04 10:30:24,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:30:24,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:30:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:30:24,546 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:30:24,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:30:24,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050933897] [2021-11-04 10:30:24,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050933897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:30:24,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:30:24,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:30:24,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990170909] [2021-11-04 10:30:24,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:30:24,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:30:24,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:30:24,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:30:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:30:24,548 INFO L87 Difference]: Start difference. First operand 93109 states and 121932 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-04 10:30:28,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:33,878 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:36,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:40,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:42,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:44,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:47,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:49,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:51,942 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:54,133 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:30:56,149 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:00,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:03,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:05,434 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:10,844 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:14,286 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:36,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:39,365 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:43,954 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:48,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:51,457 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:53,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:31:57,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:12,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:13,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:32:13,284 INFO L93 Difference]: Finished difference Result 189549 states and 248142 transitions. [2021-11-04 10:32:13,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:32:13,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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 94 [2021-11-04 10:32:13,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:32:13,606 INFO L225 Difference]: With dead ends: 189549 [2021-11-04 10:32:13,607 INFO L226 Difference]: Without dead ends: 96596 [2021-11-04 10:32:13,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:32:13,717 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10611 mSDsluCounter, 11253 mSDsCounter, 0 mSdLazyCounter, 25800 mSolverCounterSat, 6 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96482.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10611 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 60.25ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25800 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 105627.35ms IncrementalHoareTripleChecker+Time [2021-11-04 10:32:13,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10611 Valid, 0 Invalid, 25828 Unknown, 0 Unchecked, 60.25ms Time], IncrementalHoareTripleChecker [6 Valid, 25800 Invalid, 22 Unknown, 0 Unchecked, 105627.35ms Time] [2021-11-04 10:32:13,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96596 states. [2021-11-04 10:32:15,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96596 to 96156. [2021-11-04 10:32:15,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96156 states, 96087 states have (on average 1.3102292713894699) internal successors, (125896), 96155 states have internal predecessors, (125896), 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) [2021-11-04 10:32:15,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96156 states to 96156 states and 125896 transitions. [2021-11-04 10:32:15,815 INFO L78 Accepts]: Start accepts. Automaton has 96156 states and 125896 transitions. Word has length 94 [2021-11-04 10:32:15,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:32:15,816 INFO L470 AbstractCegarLoop]: Abstraction has 96156 states and 125896 transitions. [2021-11-04 10:32:15,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 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) [2021-11-04 10:32:15,816 INFO L276 IsEmpty]: Start isEmpty. Operand 96156 states and 125896 transitions. [2021-11-04 10:32:15,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-04 10:32:15,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:32:15,820 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:32:15,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 10:32:15,820 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-04 10:32:15,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:32:15,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1750441019, now seen corresponding path program 1 times [2021-11-04 10:32:15,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:32:15,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733270449] [2021-11-04 10:32:15,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:32:15,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:32:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:32:16,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:32:16,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:32:16,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733270449] [2021-11-04 10:32:16,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733270449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:32:16,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:32:16,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:32:16,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231013989] [2021-11-04 10:32:16,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:32:16,172 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:32:16,172 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:32:16,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:32:16,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:32:16,172 INFO L87 Difference]: Start difference. First operand 96156 states and 125896 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-04 10:32:19,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:22,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:24,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:25,640 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:30,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:34,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:37,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:40,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:43,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:46,071 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:51,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:54,139 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:32:57,363 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:03,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:08,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:15,778 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:19,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:21,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:27,897 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:32,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:36,953 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:45,371 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:33:51,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:00,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:02,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:34:02,425 INFO L93 Difference]: Finished difference Result 243091 states and 318998 transitions. [2021-11-04 10:34:02,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:34:02,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 98 [2021-11-04 10:34:02,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:34:02,814 INFO L225 Difference]: With dead ends: 243091 [2021-11-04 10:34:02,814 INFO L226 Difference]: Without dead ends: 147091 [2021-11-04 10:34:03,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:34:03,099 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 8404 mSDsluCounter, 11153 mSDsCounter, 0 mSdLazyCounter, 22736 mSolverCounterSat, 11 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92815.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8404 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.77ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 22736 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102313.25ms IncrementalHoareTripleChecker+Time [2021-11-04 10:34:03,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8404 Valid, 0 Invalid, 22767 Unknown, 0 Unchecked, 54.77ms Time], IncrementalHoareTripleChecker [11 Valid, 22736 Invalid, 20 Unknown, 0 Unchecked, 102313.25ms Time] [2021-11-04 10:34:03,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147091 states. [2021-11-04 10:34:05,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147091 to 142937. [2021-11-04 10:34:06,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142937 states, 142868 states have (on average 1.3148780692667357) internal successors, (187854), 142936 states have internal predecessors, (187854), 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) [2021-11-04 10:34:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142937 states to 142937 states and 187854 transitions. [2021-11-04 10:34:06,428 INFO L78 Accepts]: Start accepts. Automaton has 142937 states and 187854 transitions. Word has length 98 [2021-11-04 10:34:06,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:34:06,428 INFO L470 AbstractCegarLoop]: Abstraction has 142937 states and 187854 transitions. [2021-11-04 10:34:06,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2021-11-04 10:34:06,429 INFO L276 IsEmpty]: Start isEmpty. Operand 142937 states and 187854 transitions. [2021-11-04 10:34:06,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-04 10:34:06,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:34:06,430 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:34:06,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 10:34:06,431 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-04 10:34:06,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:34:06,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1019799535, now seen corresponding path program 1 times [2021-11-04 10:34:06,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:34:06,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977720088] [2021-11-04 10:34:06,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:34:06,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:34:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:34:06,585 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:34:06,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:34:06,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977720088] [2021-11-04 10:34:06,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977720088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:34:06,586 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:34:06,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:34:06,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272979760] [2021-11-04 10:34:06,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:34:06,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:34:06,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:34:06,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:34:06,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:34:06,587 INFO L87 Difference]: Start difference. First operand 142937 states and 187854 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-04 10:34:10,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:13,279 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:15,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:18,102 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:20,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:28,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:33,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:36,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:41,103 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:44,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:46,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:48,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:34:56,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:08,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:15,327 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:20,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:25,155 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:29,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:31,336 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:34,856 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:41,617 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:47,060 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:49,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:35:53,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:11,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:16,642 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:31,816 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:36:33,319 INFO L93 Difference]: Finished difference Result 421537 states and 555181 transitions. [2021-11-04 10:36:33,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:36:33,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2021-11-04 10:36:33,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:36:34,225 INFO L225 Difference]: With dead ends: 421537 [2021-11-04 10:36:34,226 INFO L226 Difference]: Without dead ends: 278807 [2021-11-04 10:36:34,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:36:34,458 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10076 mSDsluCounter, 11242 mSDsCounter, 0 mSdLazyCounter, 26592 mSolverCounterSat, 5 mSolverCounterUnsat, 24 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 122022.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10076 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 26621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 90.99ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 26592 IncrementalHoareTripleChecker+Invalid, 24 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139899.04ms IncrementalHoareTripleChecker+Time [2021-11-04 10:36:34,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10076 Valid, 0 Invalid, 26621 Unknown, 0 Unchecked, 90.99ms Time], IncrementalHoareTripleChecker [5 Valid, 26592 Invalid, 24 Unknown, 0 Unchecked, 139899.04ms Time] [2021-11-04 10:36:34,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278807 states. [2021-11-04 10:36:40,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278807 to 278597. [2021-11-04 10:36:41,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278597 states, 278528 states have (on average 1.3179931640625) internal successors, (367098), 278596 states have internal predecessors, (367098), 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) [2021-11-04 10:36:42,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278597 states to 278597 states and 367098 transitions. [2021-11-04 10:36:42,331 INFO L78 Accepts]: Start accepts. Automaton has 278597 states and 367098 transitions. Word has length 104 [2021-11-04 10:36:42,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:36:42,332 INFO L470 AbstractCegarLoop]: Abstraction has 278597 states and 367098 transitions. [2021-11-04 10:36:42,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-04 10:36:42,332 INFO L276 IsEmpty]: Start isEmpty. Operand 278597 states and 367098 transitions. [2021-11-04 10:36:42,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-04 10:36:42,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:36:42,335 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-04 10:36:42,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 10:36:42,335 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 66 more)] === [2021-11-04 10:36:42,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:36:42,343 INFO L85 PathProgramCache]: Analyzing trace with hash -260064143, now seen corresponding path program 1 times [2021-11-04 10:36:42,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:36:42,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253969875] [2021-11-04 10:36:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:36:42,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:36:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:36:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 10:36:42,650 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:36:42,650 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253969875] [2021-11-04 10:36:42,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253969875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:36:42,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:36:42,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:36:42,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732182640] [2021-11-04 10:36:42,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:36:42,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:36:42,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:36:42,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:36:42,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:36:42,652 INFO L87 Difference]: Start difference. First operand 278597 states and 367098 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2021-11-04 10:36:47,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:50,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:53,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:56,603 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:37:10,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:37:16,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:37:18,932 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:37:23,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:37:28,972 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:37:31,513 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:37:36,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15