./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 5b36d44f 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-5b36d44 [2021-11-07 17:34:41,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:34:41,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:34:41,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:34:41,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:34:41,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:34:41,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:34:41,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:34:41,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:34:41,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:34:41,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:34:41,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:34:41,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:34:41,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:34:41,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:34:41,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:34:41,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:34:41,707 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:34:41,708 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:34:41,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:34:41,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:34:41,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:34:41,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:34:41,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:34:41,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:34:41,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:34:41,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:34:41,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:34:41,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:34:41,715 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:34:41,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:34:41,716 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:34:41,716 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:34:41,717 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:34:41,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:34:41,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:34:41,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:34:41,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:34:41,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:34:41,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:34:41,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:34:41,720 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:34:41,736 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:34:41,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:34:41,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:34:41,736 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:34:41,737 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:34:41,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:34:41,737 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:34:41,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:34:41,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:34:41,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:34:41,738 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:34:41,738 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:34:41,738 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:34:41,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:34:41,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:34:41,739 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:34:41,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:34:41,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:34:41,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:34:41,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:34:41,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:34:41,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:34:41,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:34:41,740 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:34:41,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:34:41,740 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:34:41,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:34:41,740 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:34:41,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:34:41,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a0fd6bb20819f4c1984e3b3e8e83ec7b86578d28f1c3e6d8ae5f0c954457512 [2021-11-07 17:34:41,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:34:41,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:34:41,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:34:41,900 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:34:41,911 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:34:41,912 INFO L432 ainManager$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 [2021-11-07 17:34:41,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee32f3c12/f6426cc7790246b5a9586877f21bc4fd/FLAG093ba7363 [2021-11-07 17:34:42,619 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:34:42,621 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 [2021-11-07 17:34:42,662 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee32f3c12/f6426cc7790246b5a9586877f21bc4fd/FLAG093ba7363 [2021-11-07 17:34:42,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee32f3c12/f6426cc7790246b5a9586877f21bc4fd [2021-11-07 17:34:42,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:34:42,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:34:42,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:34:42,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:34:42,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:34:42,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:34:42" (1/1) ... [2021-11-07 17:34:42,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bad02d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:42, skipping insertion in model container [2021-11-07 17:34:42,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:34:42" (1/1) ... [2021-11-07 17:34:42,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:34:42,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:34:44,354 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] [2021-11-07 17:34:44,357 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] [2021-11-07 17:34:44,357 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] [2021-11-07 17:34:44,357 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] [2021-11-07 17:34:44,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:34:44,436 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:34:44,664 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] [2021-11-07 17:34:44,665 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] [2021-11-07 17:34:44,665 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] [2021-11-07 17:34:44,666 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] [2021-11-07 17:34:44,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:34:44,808 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:34:44,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44 WrapperNode [2021-11-07 17:34:44,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:34:44,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:34:44,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:34:44,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:34:44,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:44,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:45,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:34:45,681 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:34:45,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:34:45,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:34:45,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:45,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:45,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:45,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:46,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:46,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:46,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:47,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:34:47,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:34:47,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:34:47,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:34:47,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (1/1) ... [2021-11-07 17:34:47,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:34:47,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:34:47,251 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) [2021-11-07 17:34:47,258 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 [2021-11-07 17:34:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2021-11-07 17:34:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:34:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:34:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:34:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:34:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-11-07 17:34:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2021-11-07 17:34:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:34:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:34:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:34:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:34:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:34:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:34:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:34:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:34:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:34:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:34:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-11-07 17:34:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:35:57,750 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:35:57,751 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:35:57,751 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:35:57,752 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 17:35:57,752 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:35:57,754 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:35:57,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:35:57,779 INFO L299 CfgBuilder]: Removed 6065 assume(true) statements. [2021-11-07 17:35:57,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:35:57 BoogieIcfgContainer [2021-11-07 17:35:57,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:35:57,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:35:57,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:35:57,789 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:35:57,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:34:42" (1/3) ... [2021-11-07 17:35:57,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45737b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:35:57, skipping insertion in model container [2021-11-07 17:35:57,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:34:44" (2/3) ... [2021-11-07 17:35:57,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45737b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:35:57, skipping insertion in model container [2021-11-07 17:35:57,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:35:57" (3/3) ... [2021-11-07 17:35:57,791 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-usb-smsc95xx.cil.i [2021-11-07 17:35:57,794 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:35:57,794 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2021-11-07 17:35:57,870 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:35:57,875 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 [2021-11-07 17:35:57,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 70 error locations. [2021-11-07 17:35:57,967 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) [2021-11-07 17:35:57,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-07 17:35:57,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:35:57,983 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] [2021-11-07 17:35:57,983 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)] === [2021-11-07 17:35:57,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:35:57,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1169077711, now seen corresponding path program 1 times [2021-11-07 17:35:57,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:35:57,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47753962] [2021-11-07 17:35:57,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:35:57,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:35:58,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:35:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:35:58,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:35:58,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47753962] [2021-11-07 17:35:58,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47753962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:35:58,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:35:58,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:35:58,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742658360] [2021-11-07 17:35:58,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:35:58,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:35:58,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:35:58,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:35:58,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:35:58,546 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) [2021-11-07 17:36:00,609 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 [] [2021-11-07 17:36:01,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:01,396 INFO L93 Difference]: Finished difference Result 25562 states and 37025 transitions. [2021-11-07 17:36:01,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:36:01,398 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 [2021-11-07 17:36:01,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:01,480 INFO L225 Difference]: With dead ends: 25562 [2021-11-07 17:36:01,480 INFO L226 Difference]: Without dead ends: 16821 [2021-11-07 17:36:01,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:01,505 INFO L933 BasicCegarLoop]: 12112 mSDtfsCounter, 11667 mSDsluCounter, 12060 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2207.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11667 SdHoareTripleChecker+Valid, 24172 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.10ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2445.03ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:01,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11667 Valid, 24172 Invalid, 44 Unknown, 0 Unchecked, 45.10ms Time], IncrementalHoareTripleChecker [8 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 2445.03ms Time] [2021-11-07 17:36:01,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16821 states. [2021-11-07 17:36:01,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16821 to 16753. [2021-11-07 17:36:01,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16753 states, 16683 states have (on average 1.39717077264281) internal successors, (23309), 16752 states have internal predecessors, (23309), 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) [2021-11-07 17:36:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16753 states to 16753 states and 23309 transitions. [2021-11-07 17:36:01,944 INFO L78 Accepts]: Start accepts. Automaton has 16753 states and 23309 transitions. Word has length 72 [2021-11-07 17:36:01,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:01,946 INFO L470 AbstractCegarLoop]: Abstraction has 16753 states and 23309 transitions. [2021-11-07 17:36:01,947 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) [2021-11-07 17:36:01,948 INFO L276 IsEmpty]: Start isEmpty. Operand 16753 states and 23309 transitions. [2021-11-07 17:36:01,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 17:36:01,953 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:01,953 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] [2021-11-07 17:36:01,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:36:01,955 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)] === [2021-11-07 17:36:01,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -246882127, now seen corresponding path program 1 times [2021-11-07 17:36:01,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:01,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805296031] [2021-11-07 17:36:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:01,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:02,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:36:02,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:02,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805296031] [2021-11-07 17:36:02,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805296031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:02,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:02,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:02,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319584590] [2021-11-07 17:36:02,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:02,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:36:02,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:02,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:36:02,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:02,265 INFO L87 Difference]: Start difference. First operand 16753 states and 23309 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) [2021-11-07 17:36:04,320 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 [] [2021-11-07 17:36:05,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:05,246 INFO L93 Difference]: Finished difference Result 40682 states and 56618 transitions. [2021-11-07 17:36:05,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:36:05,249 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 [2021-11-07 17:36:05,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:05,333 INFO L225 Difference]: With dead ends: 40682 [2021-11-07 17:36:05,333 INFO L226 Difference]: Without dead ends: 24077 [2021-11-07 17:36:05,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:05,361 INFO L933 BasicCegarLoop]: 11853 mSDtfsCounter, 10913 mSDsluCounter, 11771 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2424.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10913 SdHoareTripleChecker+Valid, 23624 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.22ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2602.94ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:05,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10913 Valid, 23624 Invalid, 99 Unknown, 0 Unchecked, 31.22ms Time], IncrementalHoareTripleChecker [7 Valid, 91 Invalid, 1 Unknown, 0 Unchecked, 2602.94ms Time] [2021-11-07 17:36:05,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24077 states. [2021-11-07 17:36:05,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24077 to 23849. [2021-11-07 17:36:05,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23849 states, 23779 states have (on average 1.399217797216031) internal successors, (33272), 23848 states have internal predecessors, (33272), 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) [2021-11-07 17:36:05,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23849 states to 23849 states and 33272 transitions. [2021-11-07 17:36:05,823 INFO L78 Accepts]: Start accepts. Automaton has 23849 states and 33272 transitions. Word has length 86 [2021-11-07 17:36:05,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:05,825 INFO L470 AbstractCegarLoop]: Abstraction has 23849 states and 33272 transitions. [2021-11-07 17:36:05,826 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) [2021-11-07 17:36:05,826 INFO L276 IsEmpty]: Start isEmpty. Operand 23849 states and 33272 transitions. [2021-11-07 17:36:05,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 17:36:05,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:05,830 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] [2021-11-07 17:36:05,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:36:05,831 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)] === [2021-11-07 17:36:05,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:05,832 INFO L85 PathProgramCache]: Analyzing trace with hash 37135963, now seen corresponding path program 1 times [2021-11-07 17:36:05,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:05,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980299666] [2021-11-07 17:36:05,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:05,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:06,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:36:06,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:06,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980299666] [2021-11-07 17:36:06,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980299666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:06,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:06,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:06,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674433233] [2021-11-07 17:36:06,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:06,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:36:06,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:06,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:36:06,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:06,144 INFO L87 Difference]: Start difference. First operand 23849 states and 33272 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) [2021-11-07 17:36:08,199 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 [] [2021-11-07 17:36:09,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:09,327 INFO L93 Difference]: Finished difference Result 55781 states and 77869 transitions. [2021-11-07 17:36:09,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:36:09,328 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 [2021-11-07 17:36:09,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:09,420 INFO L225 Difference]: With dead ends: 55781 [2021-11-07 17:36:09,420 INFO L226 Difference]: Without dead ends: 39693 [2021-11-07 17:36:09,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:09,737 INFO L933 BasicCegarLoop]: 23332 mSDtfsCounter, 11480 mSDsluCounter, 11828 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2187.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11480 SdHoareTripleChecker+Valid, 35160 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.95ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2334.85ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:09,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11480 Valid, 35160 Invalid, 40 Unknown, 0 Unchecked, 37.95ms Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2334.85ms Time] [2021-11-07 17:36:09,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39693 states. [2021-11-07 17:36:10,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39693 to 39625. [2021-11-07 17:36:10,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39625 states, 39555 states have (on average 1.400505625079004) internal successors, (55397), 39624 states have internal predecessors, (55397), 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) [2021-11-07 17:36:10,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39625 states to 39625 states and 55397 transitions. [2021-11-07 17:36:10,533 INFO L78 Accepts]: Start accepts. Automaton has 39625 states and 55397 transitions. Word has length 104 [2021-11-07 17:36:10,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:10,535 INFO L470 AbstractCegarLoop]: Abstraction has 39625 states and 55397 transitions. [2021-11-07 17:36:10,536 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) [2021-11-07 17:36:10,536 INFO L276 IsEmpty]: Start isEmpty. Operand 39625 states and 55397 transitions. [2021-11-07 17:36:10,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 17:36:10,541 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:10,542 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] [2021-11-07 17:36:10,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:36:10,543 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)] === [2021-11-07 17:36:10,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:10,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1242727715, now seen corresponding path program 1 times [2021-11-07 17:36:10,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:10,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171334773] [2021-11-07 17:36:10,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:10,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:10,914 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 17:36:10,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:10,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171334773] [2021-11-07 17:36:10,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171334773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:10,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:10,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:10,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887411213] [2021-11-07 17:36:10,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:10,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:36:10,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:10,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:36:10,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:10,915 INFO L87 Difference]: Start difference. First operand 39625 states and 55397 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) [2021-11-07 17:36:12,980 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 [] [2021-11-07 17:36:14,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:14,144 INFO L93 Difference]: Finished difference Result 87337 states and 122127 transitions. [2021-11-07 17:36:14,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:36:14,145 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 [2021-11-07 17:36:14,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:14,349 INFO L225 Difference]: With dead ends: 87337 [2021-11-07 17:36:14,350 INFO L226 Difference]: Without dead ends: 55473 [2021-11-07 17:36:14,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:36:14,430 INFO L933 BasicCegarLoop]: 12618 mSDtfsCounter, 11553 mSDsluCounter, 11759 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2240.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11553 SdHoareTripleChecker+Valid, 24377 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.81ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2448.68ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:14,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11553 Valid, 24377 Invalid, 44 Unknown, 0 Unchecked, 22.81ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 2448.68ms Time] [2021-11-07 17:36:14,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55473 states. [2021-11-07 17:36:15,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55473 to 55405. [2021-11-07 17:36:15,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55405 states, 55335 states have (on average 1.4011023764344448) internal successors, (77530), 55404 states have internal predecessors, (77530), 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) [2021-11-07 17:36:15,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55405 states to 55405 states and 77530 transitions. [2021-11-07 17:36:15,841 INFO L78 Accepts]: Start accepts. Automaton has 55405 states and 77530 transitions. Word has length 104 [2021-11-07 17:36:15,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:15,842 INFO L470 AbstractCegarLoop]: Abstraction has 55405 states and 77530 transitions. [2021-11-07 17:36:15,842 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) [2021-11-07 17:36:15,843 INFO L276 IsEmpty]: Start isEmpty. Operand 55405 states and 77530 transitions. [2021-11-07 17:36:15,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-07 17:36:15,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:15,849 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] [2021-11-07 17:36:15,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:36:15,849 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)] === [2021-11-07 17:36:15,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:15,849 INFO L85 PathProgramCache]: Analyzing trace with hash 416925785, now seen corresponding path program 1 times [2021-11-07 17:36:15,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:15,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762567348] [2021-11-07 17:36:15,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:15,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:16,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:16,397 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 17:36:16,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:16,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762567348] [2021-11-07 17:36:16,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762567348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:16,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:16,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:16,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424429460] [2021-11-07 17:36:16,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:16,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:16,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:16,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:16,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:16,399 INFO L87 Difference]: Start difference. First operand 55405 states and 77530 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) [2021-11-07 17:36:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:17,260 INFO L93 Difference]: Finished difference Result 55405 states and 77530 transitions. [2021-11-07 17:36:17,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:17,260 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 [2021-11-07 17:36:17,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:17,375 INFO L225 Difference]: With dead ends: 55405 [2021-11-07 17:36:17,376 INFO L226 Difference]: Without dead ends: 55399 [2021-11-07 17:36:17,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 63.69ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:17,398 INFO L933 BasicCegarLoop]: 11848 mSDtfsCounter, 11764 mSDsluCounter, 11752 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 288.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11764 SdHoareTripleChecker+Valid, 23600 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 26.53ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 310.63ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:17,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11764 Valid, 23600 Invalid, 106 Unknown, 0 Unchecked, 26.53ms Time], IncrementalHoareTripleChecker [34 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 310.63ms Time] [2021-11-07 17:36:17,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55399 states. [2021-11-07 17:36:18,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55399 to 55399. [2021-11-07 17:36:18,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55399 states, 55332 states have (on average 1.4010699052989228) internal successors, (77524), 55398 states have internal predecessors, (77524), 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) [2021-11-07 17:36:18,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55399 states to 55399 states and 77524 transitions. [2021-11-07 17:36:18,497 INFO L78 Accepts]: Start accepts. Automaton has 55399 states and 77524 transitions. Word has length 107 [2021-11-07 17:36:18,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:18,497 INFO L470 AbstractCegarLoop]: Abstraction has 55399 states and 77524 transitions. [2021-11-07 17:36:18,497 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) [2021-11-07 17:36:18,498 INFO L276 IsEmpty]: Start isEmpty. Operand 55399 states and 77524 transitions. [2021-11-07 17:36:18,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-07 17:36:18,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:18,508 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] [2021-11-07 17:36:18,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:36:18,509 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)] === [2021-11-07 17:36:18,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:18,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1233876444, now seen corresponding path program 1 times [2021-11-07 17:36:18,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:18,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961130949] [2021-11-07 17:36:18,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:18,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 17:36:18,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:18,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961130949] [2021-11-07 17:36:18,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961130949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:18,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:18,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:18,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62173690] [2021-11-07 17:36:18,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:18,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:18,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:18,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:18,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:18,833 INFO L87 Difference]: Start difference. First operand 55399 states and 77524 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) [2021-11-07 17:36:19,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:19,818 INFO L93 Difference]: Finished difference Result 55399 states and 77524 transitions. [2021-11-07 17:36:19,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:19,818 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 109 [2021-11-07 17:36:19,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:19,903 INFO L225 Difference]: With dead ends: 55399 [2021-11-07 17:36:19,903 INFO L226 Difference]: Without dead ends: 55393 [2021-11-07 17:36:19,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 68.66ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:19,921 INFO L933 BasicCegarLoop]: 11842 mSDtfsCounter, 11753 mSDsluCounter, 11749 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 286.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11753 SdHoareTripleChecker+Valid, 23591 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.20ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 315.28ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:19,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11753 Valid, 23591 Invalid, 106 Unknown, 0 Unchecked, 24.20ms Time], IncrementalHoareTripleChecker [37 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 315.28ms Time] [2021-11-07 17:36:19,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55393 states. [2021-11-07 17:36:20,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55393 to 55393. [2021-11-07 17:36:20,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55393 states, 55329 states have (on average 1.4010374306421587) internal successors, (77518), 55392 states have internal predecessors, (77518), 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) [2021-11-07 17:36:20,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55393 states to 55393 states and 77518 transitions. [2021-11-07 17:36:20,968 INFO L78 Accepts]: Start accepts. Automaton has 55393 states and 77518 transitions. Word has length 109 [2021-11-07 17:36:20,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:20,969 INFO L470 AbstractCegarLoop]: Abstraction has 55393 states and 77518 transitions. [2021-11-07 17:36:20,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-07 17:36:20,969 INFO L276 IsEmpty]: Start isEmpty. Operand 55393 states and 77518 transitions. [2021-11-07 17:36:20,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-07 17:36:20,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:20,973 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, 1, 1] [2021-11-07 17:36:20,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:36:20,974 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 17:36:20,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:20,974 INFO L85 PathProgramCache]: Analyzing trace with hash 344444895, now seen corresponding path program 1 times [2021-11-07 17:36:20,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:20,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310440915] [2021-11-07 17:36:20,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:20,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 17:36:21,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:21,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310440915] [2021-11-07 17:36:21,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310440915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:21,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:21,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:21,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529365196] [2021-11-07 17:36:21,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:21,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:21,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:21,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:21,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:21,433 INFO L87 Difference]: Start difference. First operand 55393 states and 77518 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-07 17:36:22,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:22,502 INFO L93 Difference]: Finished difference Result 55393 states and 77518 transitions. [2021-11-07 17:36:22,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:22,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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 111 [2021-11-07 17:36:22,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:22,601 INFO L225 Difference]: With dead ends: 55393 [2021-11-07 17:36:22,602 INFO L226 Difference]: Without dead ends: 55387 [2021-11-07 17:36:22,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.19ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:22,625 INFO L933 BasicCegarLoop]: 11836 mSDtfsCounter, 11745 mSDsluCounter, 11746 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 297.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11745 SdHoareTripleChecker+Valid, 23582 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.14ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 340.88ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:22,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11745 Valid, 23582 Invalid, 103 Unknown, 0 Unchecked, 22.14ms Time], IncrementalHoareTripleChecker [37 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 340.88ms Time] [2021-11-07 17:36:22,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55387 states. [2021-11-07 17:36:23,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55387 to 55387. [2021-11-07 17:36:23,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55387 states, 55326 states have (on average 1.4010049524635795) internal successors, (77512), 55386 states have internal predecessors, (77512), 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) [2021-11-07 17:36:23,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55387 states to 55387 states and 77512 transitions. [2021-11-07 17:36:23,807 INFO L78 Accepts]: Start accepts. Automaton has 55387 states and 77512 transitions. Word has length 111 [2021-11-07 17:36:23,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:23,808 INFO L470 AbstractCegarLoop]: Abstraction has 55387 states and 77512 transitions. [2021-11-07 17:36:23,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2021-11-07 17:36:23,808 INFO L276 IsEmpty]: Start isEmpty. Operand 55387 states and 77512 transitions. [2021-11-07 17:36:23,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 17:36:23,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:23,811 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, 1, 1, 1, 1] [2021-11-07 17:36:23,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:36:23,812 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 17:36:23,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:23,813 INFO L85 PathProgramCache]: Analyzing trace with hash 299218530, now seen corresponding path program 1 times [2021-11-07 17:36:23,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:23,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267276628] [2021-11-07 17:36:23,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:23,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 17:36:24,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:24,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267276628] [2021-11-07 17:36:24,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267276628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:24,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:24,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:24,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525228457] [2021-11-07 17:36:24,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:24,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:24,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:24,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:24,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:24,125 INFO L87 Difference]: Start difference. First operand 55387 states and 77512 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-07 17:36:25,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:25,211 INFO L93 Difference]: Finished difference Result 55387 states and 77512 transitions. [2021-11-07 17:36:25,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:25,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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 113 [2021-11-07 17:36:25,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:25,318 INFO L225 Difference]: With dead ends: 55387 [2021-11-07 17:36:25,318 INFO L226 Difference]: Without dead ends: 55381 [2021-11-07 17:36:25,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.89ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:25,343 INFO L933 BasicCegarLoop]: 11830 mSDtfsCounter, 11737 mSDsluCounter, 11743 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 267.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11737 SdHoareTripleChecker+Valid, 23573 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.67ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 287.11ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:25,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11737 Valid, 23573 Invalid, 100 Unknown, 0 Unchecked, 21.67ms Time], IncrementalHoareTripleChecker [37 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 287.11ms Time] [2021-11-07 17:36:25,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55381 states. [2021-11-07 17:36:26,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55381 to 55381. [2021-11-07 17:36:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55381 states, 55323 states have (on average 1.4009724707626123) internal successors, (77506), 55380 states have internal predecessors, (77506), 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) [2021-11-07 17:36:26,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55381 states to 55381 states and 77506 transitions. [2021-11-07 17:36:26,516 INFO L78 Accepts]: Start accepts. Automaton has 55381 states and 77506 transitions. Word has length 113 [2021-11-07 17:36:26,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:26,516 INFO L470 AbstractCegarLoop]: Abstraction has 55381 states and 77506 transitions. [2021-11-07 17:36:26,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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) [2021-11-07 17:36:26,516 INFO L276 IsEmpty]: Start isEmpty. Operand 55381 states and 77506 transitions. [2021-11-07 17:36:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-07 17:36:26,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:26,521 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, 1, 1, 1, 1, 1, 1] [2021-11-07 17:36:26,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 17:36:26,521 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 17:36:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:26,522 INFO L85 PathProgramCache]: Analyzing trace with hash -213644955, now seen corresponding path program 1 times [2021-11-07 17:36:26,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:26,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926433425] [2021-11-07 17:36:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:26,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:26,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:26,912 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 17:36:26,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:26,912 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926433425] [2021-11-07 17:36:26,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926433425] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:26,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:26,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:26,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183603739] [2021-11-07 17:36:26,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:26,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:26,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:26,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:26,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:26,913 INFO L87 Difference]: Start difference. First operand 55381 states and 77506 transitions. Second operand has 4 states, 4 states have (on average 26.0) 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) [2021-11-07 17:36:28,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:28,022 INFO L93 Difference]: Finished difference Result 55381 states and 77506 transitions. [2021-11-07 17:36:28,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:28,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) 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 115 [2021-11-07 17:36:28,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:28,119 INFO L225 Difference]: With dead ends: 55381 [2021-11-07 17:36:28,119 INFO L226 Difference]: Without dead ends: 55375 [2021-11-07 17:36:28,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 72.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:28,141 INFO L933 BasicCegarLoop]: 11824 mSDtfsCounter, 11729 mSDsluCounter, 11740 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 254.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11729 SdHoareTripleChecker+Valid, 23564 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.94ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 272.92ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:28,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11729 Valid, 23564 Invalid, 97 Unknown, 0 Unchecked, 21.94ms Time], IncrementalHoareTripleChecker [37 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 272.92ms Time] [2021-11-07 17:36:28,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55375 states. [2021-11-07 17:36:29,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55375 to 55375. [2021-11-07 17:36:29,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55375 states, 55320 states have (on average 1.400939985538684) internal successors, (77500), 55374 states have internal predecessors, (77500), 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) [2021-11-07 17:36:29,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55375 states to 55375 states and 77500 transitions. [2021-11-07 17:36:29,248 INFO L78 Accepts]: Start accepts. Automaton has 55375 states and 77500 transitions. Word has length 115 [2021-11-07 17:36:29,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:29,249 INFO L470 AbstractCegarLoop]: Abstraction has 55375 states and 77500 transitions. [2021-11-07 17:36:29,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) 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) [2021-11-07 17:36:29,249 INFO L276 IsEmpty]: Start isEmpty. Operand 55375 states and 77500 transitions. [2021-11-07 17:36:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-07 17:36:29,253 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:29,253 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:36:29,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 17:36:29,253 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 17:36:29,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:29,254 INFO L85 PathProgramCache]: Analyzing trace with hash 845785320, now seen corresponding path program 1 times [2021-11-07 17:36:29,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:29,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436899501] [2021-11-07 17:36:29,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:29,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:29,541 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 17:36:29,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:29,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436899501] [2021-11-07 17:36:29,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436899501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:29,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:29,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:29,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444900259] [2021-11-07 17:36:29,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:29,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:29,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:29,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:29,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:29,543 INFO L87 Difference]: Start difference. First operand 55375 states and 77500 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-07 17:36:30,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:30,688 INFO L93 Difference]: Finished difference Result 55375 states and 77500 transitions. [2021-11-07 17:36:30,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:30,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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 117 [2021-11-07 17:36:30,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:30,793 INFO L225 Difference]: With dead ends: 55375 [2021-11-07 17:36:30,793 INFO L226 Difference]: Without dead ends: 55369 [2021-11-07 17:36:30,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 75.18ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:30,812 INFO L933 BasicCegarLoop]: 11818 mSDtfsCounter, 11721 mSDsluCounter, 11737 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 325.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11721 SdHoareTripleChecker+Valid, 23555 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.00ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 340.82ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:30,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11721 Valid, 23555 Invalid, 94 Unknown, 0 Unchecked, 19.00ms Time], IncrementalHoareTripleChecker [37 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 340.82ms Time] [2021-11-07 17:36:30,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55369 states. [2021-11-07 17:36:32,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55369 to 55369. [2021-11-07 17:36:32,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55369 states, 55317 states have (on average 1.4009074967912214) internal successors, (77494), 55368 states have internal predecessors, (77494), 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) [2021-11-07 17:36:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55369 states to 55369 states and 77494 transitions. [2021-11-07 17:36:32,152 INFO L78 Accepts]: Start accepts. Automaton has 55369 states and 77494 transitions. Word has length 117 [2021-11-07 17:36:32,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:32,152 INFO L470 AbstractCegarLoop]: Abstraction has 55369 states and 77494 transitions. [2021-11-07 17:36:32,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 3 states have internal predecessors, (106), 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) [2021-11-07 17:36:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 55369 states and 77494 transitions. [2021-11-07 17:36:32,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-07 17:36:32,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:32,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:36:32,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 17:36:32,164 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 17:36:32,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:32,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1051030763, now seen corresponding path program 1 times [2021-11-07 17:36:32,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:32,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446217177] [2021-11-07 17:36:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:32,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 17:36:32,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:32,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446217177] [2021-11-07 17:36:32,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446217177] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:32,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:32,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:32,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698275575] [2021-11-07 17:36:32,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:32,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:32,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:32,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:32,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:32,423 INFO L87 Difference]: Start difference. First operand 55369 states and 77494 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2021-11-07 17:36:33,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:33,505 INFO L93 Difference]: Finished difference Result 55369 states and 77494 transitions. [2021-11-07 17:36:33,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:33,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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 119 [2021-11-07 17:36:33,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:33,600 INFO L225 Difference]: With dead ends: 55369 [2021-11-07 17:36:33,600 INFO L226 Difference]: Without dead ends: 55363 [2021-11-07 17:36:33,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.56ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:33,623 INFO L933 BasicCegarLoop]: 11812 mSDtfsCounter, 11713 mSDsluCounter, 11734 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 228.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11713 SdHoareTripleChecker+Valid, 23546 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.29ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 245.90ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:33,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11713 Valid, 23546 Invalid, 91 Unknown, 0 Unchecked, 19.29ms Time], IncrementalHoareTripleChecker [37 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 245.90ms Time] [2021-11-07 17:36:33,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55363 states. [2021-11-07 17:36:34,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55363 to 55363. [2021-11-07 17:36:34,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55363 states, 55314 states have (on average 1.4008750045196514) internal successors, (77488), 55362 states have internal predecessors, (77488), 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) [2021-11-07 17:36:35,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55363 states to 55363 states and 77488 transitions. [2021-11-07 17:36:35,068 INFO L78 Accepts]: Start accepts. Automaton has 55363 states and 77488 transitions. Word has length 119 [2021-11-07 17:36:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:36:35,069 INFO L470 AbstractCegarLoop]: Abstraction has 55363 states and 77488 transitions. [2021-11-07 17:36:35,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2021-11-07 17:36:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 55363 states and 77488 transitions. [2021-11-07 17:36:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-07 17:36:35,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:36:35,074 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:36:35,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 17:36:35,075 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 67 more)] === [2021-11-07 17:36:35,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:36:35,075 INFO L85 PathProgramCache]: Analyzing trace with hash 723406190, now seen corresponding path program 1 times [2021-11-07 17:36:35,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:36:35,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499775395] [2021-11-07 17:36:35,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:36:35,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:36:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:36:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-07 17:36:35,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:36:35,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499775395] [2021-11-07 17:36:35,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499775395] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:36:35,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:36:35,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:36:35,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623340778] [2021-11-07 17:36:35,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:36:35,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:36:35,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:36:35,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:36:35,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:36:35,361 INFO L87 Difference]: Start difference. First operand 55363 states and 77488 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 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) [2021-11-07 17:36:37,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:36:37,148 INFO L93 Difference]: Finished difference Result 55363 states and 77488 transitions. [2021-11-07 17:36:37,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:36:37,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 3 states have internal predecessors, (110), 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 121 [2021-11-07 17:36:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:36:37,245 INFO L225 Difference]: With dead ends: 55363 [2021-11-07 17:36:37,245 INFO L226 Difference]: Without dead ends: 55357 [2021-11-07 17:36:37,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.28ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:36:37,264 INFO L933 BasicCegarLoop]: 11772 mSDtfsCounter, 11348 mSDsluCounter, 11986 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 687.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11348 SdHoareTripleChecker+Valid, 23758 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.46ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1006.36ms IncrementalHoareTripleChecker+Time [2021-11-07 17:36:37,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11348 Valid, 23758 Invalid, 224 Unknown, 0 Unchecked, 21.46ms Time], IncrementalHoareTripleChecker [54 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 1006.36ms Time] [2021-11-07 17:36:37,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55357 states.