./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-usb-smsc95xx.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-usb-smsc95xx.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 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 10:35:48,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 10:35:48,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 10:35:48,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 10:35:48,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 10:35:48,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 10:35:48,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 10:35:48,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 10:35:48,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 10:35:48,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 10:35:48,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 10:35:48,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 10:35:48,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 10:35:49,001 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 10:35:49,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 10:35:49,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 10:35:49,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 10:35:49,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 10:35:49,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 10:35:49,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 10:35:49,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 10:35:49,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 10:35:49,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 10:35:49,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 10:35:49,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 10:35:49,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 10:35:49,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 10:35:49,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 10:35:49,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 10:35:49,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 10:35:49,023 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 10:35:49,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 10:35:49,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 10:35:49,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 10:35:49,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 10:35:49,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 10:35:49,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 10:35:49,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 10:35:49,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 10:35:49,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 10:35:49,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 10:35:49,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 10:35:49,057 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 10:35:49,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 10:35:49,057 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 10:35:49,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 10:35:49,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 10:35:49,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 10:35:49,059 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 10:35:49,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 10:35:49,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 10:35:49,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 10:35:49,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 10:35:49,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 10:35:49,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 10:35:49,061 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 10:35:49,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 10:35:49,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 10:35:49,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 10:35:49,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 10:35:49,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 10:35:49,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:35:49,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 10:35:49,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 10:35:49,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 10:35:49,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 10:35:49,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 10:35:49,062 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 10:35:49,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 10:35:49,063 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 10:35:49,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 10:35:49,063 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2021-11-04 10:35:49,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 10:35:49,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 10:35:49,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 10:35:49,268 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 10:35:49,268 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 10:35:49,269 INFO L432 ainManager$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-usb-smsc95xx.cil.i [2021-11-04 10:35:49,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ca530469/70f452bf3c394306b356a4b28d4d2d0d/FLAG172bf1eba [2021-11-04 10:35:49,898 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 10:35:49,899 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-usb-smsc95xx.cil.i [2021-11-04 10:35:49,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ca530469/70f452bf3c394306b356a4b28d4d2d0d/FLAG172bf1eba [2021-11-04 10:35:50,041 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ca530469/70f452bf3c394306b356a4b28d4d2d0d [2021-11-04 10:35:50,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 10:35:50,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 10:35:50,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 10:35:50,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 10:35:50,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 10:35:50,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:35:50" (1/1) ... [2021-11-04 10:35:50,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e564f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:50, skipping insertion in model container [2021-11-04 10:35:50,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 10:35:50" (1/1) ... [2021-11-04 10:35:50,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 10:35:50,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 10:35:51,807 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-usb-smsc95xx.cil.i[348095,348108] [2021-11-04 10:35:51,809 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-usb-smsc95xx.cil.i[348264,348277] [2021-11-04 10:35:51,809 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-usb-smsc95xx.cil.i[348431,348444] [2021-11-04 10:35:51,810 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-usb-smsc95xx.cil.i[348599,348612] [2021-11-04 10:35:51,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:35:51,864 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 10:35:52,116 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-usb-smsc95xx.cil.i[348095,348108] [2021-11-04 10:35:52,117 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-usb-smsc95xx.cil.i[348264,348277] [2021-11-04 10:35:52,118 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-usb-smsc95xx.cil.i[348431,348444] [2021-11-04 10:35:52,118 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-usb-smsc95xx.cil.i[348599,348612] [2021-11-04 10:35:52,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 10:35:52,246 INFO L208 MainTranslator]: Completed translation [2021-11-04 10:35:52,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52 WrapperNode [2021-11-04 10:35:52,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 10:35:52,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 10:35:52,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 10:35:52,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 10:35:52,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:52,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:53,282 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 10:35:53,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 10:35:53,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 10:35:53,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 10:35:53,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:53,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:53,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:53,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:54,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:54,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:54,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:54,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 10:35:54,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 10:35:54,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 10:35:54,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 10:35:54,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (1/1) ... [2021-11-04 10:35:54,525 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 10:35:54,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 10:35:54,542 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 10:35:54,548 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 10:35:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2021-11-04 10:35:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 10:35:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 10:35:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 10:35:54,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 10:35:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-11-04 10:35:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2021-11-04 10:35:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 10:35:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 10:35:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 10:35:54,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 10:35:54,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 10:35:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 10:35:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 10:35:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 10:35:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 10:35:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 10:35:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-11-04 10:35:54,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 10:36:04,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 10:36:04,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 10:36:04,015 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 10:36:04,015 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 10:36:04,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 10:36:04,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 10:36:04,046 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 10:36:04,047 INFO L299 CfgBuilder]: Removed 6065 assume(true) statements. [2021-11-04 10:36:04,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:36:04 BoogieIcfgContainer [2021-11-04 10:36:04,056 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 10:36:04,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 10:36:04,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 10:36:04,061 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 10:36:04,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 10:35:50" (1/3) ... [2021-11-04 10:36:04,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa16571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:36:04, skipping insertion in model container [2021-11-04 10:36:04,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 10:35:52" (2/3) ... [2021-11-04 10:36:04,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa16571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 10:36:04, skipping insertion in model container [2021-11-04 10:36:04,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 10:36:04" (3/3) ... [2021-11-04 10:36:04,063 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2021-11-04 10:36:04,066 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 10:36:04,067 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2021-11-04 10:36:04,121 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 10:36:04,127 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 10:36:04,127 INFO L340 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2021-11-04 10:36:04,215 INFO L276 IsEmpty]: Start isEmpty. Operand has 8717 states, 8647 states have (on average 1.456227593384989) internal successors, (12592), 8716 states have internal predecessors, (12592), 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 10:36:04,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-04 10:36:04,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:36:04,232 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] [2021-11-04 10:36:04,232 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-04 10:36:04,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:36:04,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1169077711, now seen corresponding path program 1 times [2021-11-04 10:36:04,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:36:04,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17947348] [2021-11-04 10:36:04,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:36:04,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:36:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:36:04,826 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 10:36:04,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:36:04,826 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17947348] [2021-11-04 10:36:04,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17947348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:36:04,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:36:04,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:36:04,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134017775] [2021-11-04 10:36:04,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:36:04,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:36:04,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:36:04,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:36:04,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:36:04,869 INFO L87 Difference]: Start difference. First operand has 8717 states, 8647 states have (on average 1.456227593384989) internal successors, (12592), 8716 states have internal predecessors, (12592), 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 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 10:36:06,950 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:11,484 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:14,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:22,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:42,037 WARN L515 Checker$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 10:36:44,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:47,189 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:49,851 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:36:52,170 WARN L515 Checker$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 10:38:05,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:38:05,830 INFO L93 Difference]: Finished difference Result 25553 states and 37016 transitions. [2021-11-04 10:38:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:38:05,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-04 10:38:05,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:38:05,904 INFO L225 Difference]: With dead ends: 25553 [2021-11-04 10:38:05,905 INFO L226 Difference]: Without dead ends: 16812 [2021-11-04 10:38:05,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.99ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:38:05,931 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 11655 mSDsluCounter, 12057 mSDsCounter, 0 mSdLazyCounter, 23942 mSolverCounterSat, 8 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 112532.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11655 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 23955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 174.52ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 23942 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 118693.22ms IncrementalHoareTripleChecker+Time [2021-11-04 10:38:05,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11655 Valid, 257 Invalid, 23955 Unknown, 0 Unchecked, 174.52ms Time], IncrementalHoareTripleChecker [8 Valid, 23942 Invalid, 5 Unknown, 0 Unchecked, 118693.22ms Time] [2021-11-04 10:38:05,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16812 states. [2021-11-04 10:38:06,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16812 to 16744. [2021-11-04 10:38:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16744 states, 16674 states have (on average 1.397385150533765) internal successors, (23300), 16743 states have internal predecessors, (23300), 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 10:38:06,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16744 states to 16744 states and 23300 transitions. [2021-11-04 10:38:06,517 INFO L78 Accepts]: Start accepts. Automaton has 16744 states and 23300 transitions. Word has length 72 [2021-11-04 10:38:06,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:38:06,519 INFO L470 AbstractCegarLoop]: Abstraction has 16744 states and 23300 transitions. [2021-11-04 10:38:06,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 10:38:06,520 INFO L276 IsEmpty]: Start isEmpty. Operand 16744 states and 23300 transitions. [2021-11-04 10:38:06,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-04 10:38:06,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:38:06,525 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] [2021-11-04 10:38:06,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 10:38:06,526 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-04 10:38:06,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:38:06,527 INFO L85 PathProgramCache]: Analyzing trace with hash -246882127, now seen corresponding path program 1 times [2021-11-04 10:38:06,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:38:06,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108718608] [2021-11-04 10:38:06,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:38:06,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:38:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:38:06,819 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 10:38:06,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:38:06,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108718608] [2021-11-04 10:38:06,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108718608] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:38:06,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:38:06,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:38:06,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184208380] [2021-11-04 10:38:06,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:38:06,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:38:06,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:38:06,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:38:06,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:38:06,825 INFO L87 Difference]: Start difference. First operand 16744 states and 23300 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 10:38:08,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:38:12,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:38:23,542 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:38:26,379 WARN L515 Checker$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 10:38:28,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:38:42,540 WARN L515 Checker$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 10:38:45,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:38:47,867 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:38:51,050 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:39:08,977 WARN L515 Checker$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 10:40:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:40:14,270 INFO L93 Difference]: Finished difference Result 48813 states and 68031 transitions. [2021-11-04 10:40:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:40:14,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 86 [2021-11-04 10:40:14,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:40:14,352 INFO L225 Difference]: With dead ends: 48813 [2021-11-04 10:40:14,353 INFO L226 Difference]: Without dead ends: 32217 [2021-11-04 10:40:14,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:40:14,374 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10905 mSDsluCounter, 11769 mSDsCounter, 0 mSdLazyCounter, 23708 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 118627.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10905 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 180.46ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23708 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125422.87ms IncrementalHoareTripleChecker+Time [2021-11-04 10:40:14,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10905 Valid, 0 Invalid, 23720 Unknown, 0 Unchecked, 180.46ms Time], IncrementalHoareTripleChecker [7 Valid, 23708 Invalid, 5 Unknown, 0 Unchecked, 125422.87ms Time] [2021-11-04 10:40:14,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32217 states. [2021-11-04 10:40:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32217 to 31989. [2021-11-04 10:40:14,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31989 states, 31919 states have (on average 1.4002318368369937) internal successors, (44694), 31988 states have internal predecessors, (44694), 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 10:40:14,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31989 states to 31989 states and 44694 transitions. [2021-11-04 10:40:14,982 INFO L78 Accepts]: Start accepts. Automaton has 31989 states and 44694 transitions. Word has length 86 [2021-11-04 10:40:14,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:40:14,984 INFO L470 AbstractCegarLoop]: Abstraction has 31989 states and 44694 transitions. [2021-11-04 10:40:14,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 10:40:14,984 INFO L276 IsEmpty]: Start isEmpty. Operand 31989 states and 44694 transitions. [2021-11-04 10:40:14,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-04 10:40:14,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:40:14,988 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 10:40:14,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 10:40:14,989 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-04 10:40:14,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:40:14,990 INFO L85 PathProgramCache]: Analyzing trace with hash 37135963, now seen corresponding path program 1 times [2021-11-04 10:40:14,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:40:14,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565973624] [2021-11-04 10:40:14,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:40:14,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:40:15,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:40:15,273 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 10:40:15,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:40:15,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565973624] [2021-11-04 10:40:15,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565973624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:40:15,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:40:15,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:40:15,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699258409] [2021-11-04 10:40:15,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:40:15,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:40:15,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:40:15,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:40:15,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:40:15,275 INFO L87 Difference]: Start difference. First operand 31989 states and 44694 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 10:40:17,327 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:40:22,483 WARN L515 Checker$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 10:40:26,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:40:27,583 WARN L515 Checker$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 10:40:40,185 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:41:03,229 WARN L515 Checker$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 10:41:06,388 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:41:09,642 WARN L515 Checker$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 10:41:12,780 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 10:43:06,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:43:06,082 INFO L93 Difference]: Finished difference Result 63211 states and 88305 transitions. [2021-11-04 10:43:06,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:43:06,083 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 10:43:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:43:06,179 INFO L225 Difference]: With dead ends: 63211 [2021-11-04 10:43:06,179 INFO L226 Difference]: Without dead ends: 47129 [2021-11-04 10:43:06,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:43:06,216 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10984 mSDsluCounter, 11823 mSDsCounter, 0 mSdLazyCounter, 34685 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159504.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10984 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 199.52ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34685 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 168438.59ms IncrementalHoareTripleChecker+Time [2021-11-04 10:43:06,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10984 Valid, 0 Invalid, 34698 Unknown, 0 Unchecked, 199.52ms Time], IncrementalHoareTripleChecker [7 Valid, 34685 Invalid, 6 Unknown, 0 Unchecked, 168438.59ms Time] [2021-11-04 10:43:06,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47129 states. [2021-11-04 10:43:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47129 to 47063. [2021-11-04 10:43:06,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47063 states, 46993 states have (on average 1.401038452535484) internal successors, (65839), 47062 states have internal predecessors, (65839), 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 10:43:07,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47063 states to 47063 states and 65839 transitions. [2021-11-04 10:43:07,005 INFO L78 Accepts]: Start accepts. Automaton has 47063 states and 65839 transitions. Word has length 104 [2021-11-04 10:43:07,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:43:07,007 INFO L470 AbstractCegarLoop]: Abstraction has 47063 states and 65839 transitions. [2021-11-04 10:43:07,007 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 10:43:07,007 INFO L276 IsEmpty]: Start isEmpty. Operand 47063 states and 65839 transitions. [2021-11-04 10:43:07,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-04 10:43:07,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:43:07,014 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 10:43:07,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 10:43:07,015 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-04 10:43:07,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:43:07,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1242727715, now seen corresponding path program 1 times [2021-11-04 10:43:07,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:43:07,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175624875] [2021-11-04 10:43:07,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:43:07,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:43:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:43:07,260 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 10:43:07,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:43:07,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175624875] [2021-11-04 10:43:07,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175624875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:43:07,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:43:07,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:43:07,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455241364] [2021-11-04 10:43:07,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:43:07,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 10:43:07,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:43:07,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 10:43:07,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:43:07,262 INFO L87 Difference]: Start difference. First operand 47063 states and 65839 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 10:43:09,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:43:14,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:43:16,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:43:23,109 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:43:26,088 WARN L515 Checker$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 10:43:27,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:43:42,165 WARN L515 Checker$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 10:43:45,079 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:43:47,379 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:43:49,577 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:43:52,016 WARN L515 Checker$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 10:43:54,624 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 10:45:21,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:45:21,516 INFO L93 Difference]: Finished difference Result 94052 states and 131568 transitions. [2021-11-04 10:45:21,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 10:45:21,517 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 10:45:21,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:45:21,621 INFO L225 Difference]: With dead ends: 94052 [2021-11-04 10:45:21,622 INFO L226 Difference]: Without dead ends: 62896 [2021-11-04 10:45:21,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 10:45:21,758 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 11545 mSDsluCounter, 11757 mSDsCounter, 0 mSdLazyCounter, 24404 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 124404.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11545 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 24418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 141.90ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 24404 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 131974.32ms IncrementalHoareTripleChecker+Time [2021-11-04 10:45:21,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11545 Valid, 0 Invalid, 24418 Unknown, 0 Unchecked, 141.90ms Time], IncrementalHoareTripleChecker [9 Valid, 24404 Invalid, 5 Unknown, 0 Unchecked, 131974.32ms Time] [2021-11-04 10:45:21,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62896 states. [2021-11-04 10:45:22,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62896 to 62828. [2021-11-04 10:45:22,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62828 states, 62758 states have (on average 1.4015264986137226) internal successors, (87957), 62827 states have internal predecessors, (87957), 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 10:45:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62828 states to 62828 states and 87957 transitions. [2021-11-04 10:45:22,587 INFO L78 Accepts]: Start accepts. Automaton has 62828 states and 87957 transitions. Word has length 104 [2021-11-04 10:45:22,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:45:22,588 INFO L470 AbstractCegarLoop]: Abstraction has 62828 states and 87957 transitions. [2021-11-04 10:45:22,588 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 10:45:22,588 INFO L276 IsEmpty]: Start isEmpty. Operand 62828 states and 87957 transitions. [2021-11-04 10:45:22,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-04 10:45:22,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:45:22,591 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:45:22,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 10:45:22,592 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-04 10:45:22,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:45:22,592 INFO L85 PathProgramCache]: Analyzing trace with hash 416925785, now seen corresponding path program 1 times [2021-11-04 10:45:22,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:45:22,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369249801] [2021-11-04 10:45:22,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:45:22,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:45:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:45:23,131 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-04 10:45:23,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:45:23,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369249801] [2021-11-04 10:45:23,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369249801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:45:23,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:45:23,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:45:23,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282998494] [2021-11-04 10:45:23,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:45:23,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:45:23,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:45:23,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:45:23,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:45:23,133 INFO L87 Difference]: Start difference. First operand 62828 states and 87957 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 10:45:25,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:45:32,057 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:45:34,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:45:58,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:46:00,623 WARN L515 Checker$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 10:46:02,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:46:05,581 WARN L515 Checker$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 10:46:08,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:46:12,308 WARN L515 Checker$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 10:46:35,882 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:48:26,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 10:48:26,363 INFO L93 Difference]: Finished difference Result 117338 states and 164296 transitions. [2021-11-04 10:48:26,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-04 10:48:26,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 107 [2021-11-04 10:48:26,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 10:48:26,571 INFO L225 Difference]: With dead ends: 117338 [2021-11-04 10:48:26,571 INFO L226 Difference]: Without dead ends: 117332 [2021-11-04 10:48:26,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.35ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-04 10:48:26,607 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 11756 mSDsluCounter, 23441 mSDsCounter, 0 mSdLazyCounter, 35370 mSolverCounterSat, 67 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 170009.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11756 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 35443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 291.38ms SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 35370 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 180063.48ms IncrementalHoareTripleChecker+Time [2021-11-04 10:48:26,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11756 Valid, 0 Invalid, 35443 Unknown, 0 Unchecked, 291.38ms Time], IncrementalHoareTripleChecker [67 Valid, 35370 Invalid, 6 Unknown, 0 Unchecked, 180063.48ms Time] [2021-11-04 10:48:26,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117332 states. [2021-11-04 10:48:28,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117332 to 117132. [2021-11-04 10:48:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117132 states, 117062 states have (on average 1.4020519041191848) internal successors, (164127), 117131 states have internal predecessors, (164127), 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 10:48:28,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117132 states to 117132 states and 164127 transitions. [2021-11-04 10:48:28,745 INFO L78 Accepts]: Start accepts. Automaton has 117132 states and 164127 transitions. Word has length 107 [2021-11-04 10:48:28,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 10:48:28,745 INFO L470 AbstractCegarLoop]: Abstraction has 117132 states and 164127 transitions. [2021-11-04 10:48:28,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 3 states have internal predecessors, (96), 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 10:48:28,745 INFO L276 IsEmpty]: Start isEmpty. Operand 117132 states and 164127 transitions. [2021-11-04 10:48:28,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-04 10:48:28,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 10:48:28,749 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 10:48:28,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 10:48:28,750 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-04 10:48:28,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 10:48:28,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1233876444, now seen corresponding path program 1 times [2021-11-04 10:48:28,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 10:48:28,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97607344] [2021-11-04 10:48:28,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 10:48:28,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 10:48:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 10:48:29,156 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-04 10:48:29,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 10:48:29,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97607344] [2021-11-04 10:48:29,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97607344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 10:48:29,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 10:48:29,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 10:48:29,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171220654] [2021-11-04 10:48:29,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 10:48:29,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-04 10:48:29,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 10:48:29,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-04 10:48:29,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-04 10:48:29,158 INFO L87 Difference]: Start difference. First operand 117132 states and 164127 transitions. Second operand has 4 states, 4 states have (on average 24.5) 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 10:48:31,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:48:35,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:48:36,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:48:38,992 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:48:40,166 WARN L515 Checker$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 10:48:42,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:49:08,134 WARN L515 Checker$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 10:49:11,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:49:14,325 WARN L515 Checker$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 10:49:17,393 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 10:49:42,316 WARN L515 Checker$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 10:49:47,027 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