./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.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 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 04:06:07,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 04:06:07,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 04:06:07,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 04:06:07,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 04:06:07,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 04:06:07,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 04:06:07,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 04:06:07,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 04:06:07,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 04:06:07,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 04:06:07,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 04:06:07,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 04:06:07,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 04:06:07,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 04:06:07,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 04:06:07,601 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 04:06:07,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 04:06:07,603 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 04:06:07,606 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 04:06:07,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 04:06:07,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 04:06:07,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 04:06:07,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 04:06:07,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 04:06:07,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 04:06:07,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 04:06:07,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 04:06:07,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 04:06:07,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 04:06:07,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 04:06:07,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 04:06:07,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 04:06:07,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 04:06:07,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 04:06:07,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 04:06:07,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 04:06:07,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 04:06:07,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 04:06:07,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 04:06:07,626 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 04:06:07,627 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 04:06:07,652 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 04:06:07,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 04:06:07,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 04:06:07,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 04:06:07,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 04:06:07,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 04:06:07,655 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 04:06:07,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 04:06:07,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 04:06:07,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 04:06:07,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 04:06:07,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 04:06:07,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 04:06:07,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 04:06:07,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 04:06:07,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 04:06:07,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 04:06:07,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 04:06:07,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 04:06:07,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:06:07,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 04:06:07,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 04:06:07,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 04:06:07,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 04:06:07,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 04:06:07,660 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 04:06:07,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 04:06:07,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 04:06:07,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 04:06:07,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2021-11-23 04:06:07,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 04:06:07,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 04:06:07,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 04:06:07,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 04:06:07,950 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 04:06:07,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-23 04:06:08,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d4f6e12/15b49a8307b247f298ddb1aba0ce3314/FLAGb64b8cc67 [2021-11-23 04:06:08,844 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 04:06:08,845 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-23 04:06:08,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d4f6e12/15b49a8307b247f298ddb1aba0ce3314/FLAGb64b8cc67 [2021-11-23 04:06:09,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d4f6e12/15b49a8307b247f298ddb1aba0ce3314 [2021-11-23 04:06:09,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 04:06:09,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 04:06:09,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 04:06:09,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 04:06:09,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 04:06:09,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:09" (1/1) ... [2021-11-23 04:06:09,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f0f19f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:09, skipping insertion in model container [2021-11-23 04:06:09,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:06:09" (1/1) ... [2021-11-23 04:06:09,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 04:06:09,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 04:06:12,965 WARN L230 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2021-11-23 04:06:12,968 WARN L230 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2021-11-23 04:06:12,969 WARN L230 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2021-11-23 04:06:12,969 WARN L230 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2021-11-23 04:06:12,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:06:13,015 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 04:06:13,390 WARN L230 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2021-11-23 04:06:13,391 WARN L230 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2021-11-23 04:06:13,392 WARN L230 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2021-11-23 04:06:13,393 WARN L230 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-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2021-11-23 04:06:13,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 04:06:13,628 INFO L208 MainTranslator]: Completed translation [2021-11-23 04:06:13,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13 WrapperNode [2021-11-23 04:06:13,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 04:06:13,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 04:06:13,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 04:06:13,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 04:06:13,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:13,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:16,709 INFO L137 Inliner]: procedures = 473, calls = 4636, calls flagged for inlining = 1143, calls inlined = 8566, statements flattened = 144705 [2021-11-23 04:06:16,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 04:06:16,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 04:06:16,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 04:06:16,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 04:06:16,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:16,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:17,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:17,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:20,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:20,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:20,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:21,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 04:06:21,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 04:06:21,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 04:06:21,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 04:06:21,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (1/1) ... [2021-11-23 04:06:21,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 04:06:21,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 04:06:21,961 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) [2021-11-23 04:06:21,985 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 [2021-11-23 04:06:22,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 04:06:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 04:06:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 04:06:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 04:06:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 04:06:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 04:06:22,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 04:06:22,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 04:06:22,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 04:06:22,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 04:06:22,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 04:06:22,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 04:06:22,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 04:06:22,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 04:06:22,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 04:06:22,006 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-23 04:06:22,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 04:06:23,054 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 04:06:23,055 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 04:10:35,388 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-23 04:10:35,388 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-23 04:10:35,388 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-23 04:10:35,389 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-23 04:10:35,389 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res#1 := 0; [2021-11-23 04:10:35,389 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res#1 := 0; [2021-11-23 04:10:35,389 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res#1 := 0; [2021-11-23 04:10:35,390 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 04:10:35,390 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 04:10:35,390 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#1: ldv_switch_3_#res#1 := 0; [2021-11-23 04:10:35,391 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 04:10:35,398 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 04:10:35,483 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 04:10:35,483 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-23 04:10:35,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:35 BoogieIcfgContainer [2021-11-23 04:10:35,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 04:10:35,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 04:10:35,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 04:10:35,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 04:10:35,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:06:09" (1/3) ... [2021-11-23 04:10:35,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72524a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:35, skipping insertion in model container [2021-11-23 04:10:35,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:06:13" (2/3) ... [2021-11-23 04:10:35,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72524a2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:10:35, skipping insertion in model container [2021-11-23 04:10:35,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:10:35" (3/3) ... [2021-11-23 04:10:35,513 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-23 04:10:35,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 04:10:35,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2021-11-23 04:10:35,659 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 04:10:35,674 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 [2021-11-23 04:10:35,676 INFO L340 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2021-11-23 04:10:35,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 22101 states, 22053 states have (on average 1.417993016823108) internal successors, (31271), 22100 states have internal predecessors, (31271), 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) [2021-11-23 04:10:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-23 04:10:36,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:10:36,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:10:36,018 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2021-11-23 04:10:36,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:10:36,024 INFO L85 PathProgramCache]: Analyzing trace with hash -158549244, now seen corresponding path program 1 times [2021-11-23 04:10:36,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:10:36,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174492749] [2021-11-23 04:10:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:10:36,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:10:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:10:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:10:36,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:10:36,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174492749] [2021-11-23 04:10:36,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174492749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:10:36,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:10:36,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:10:36,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572902971] [2021-11-23 04:10:36,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:10:36,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:10:36,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:10:36,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:10:36,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:10:36,957 INFO L87 Difference]: Start difference. First operand has 22101 states, 22053 states have (on average 1.417993016823108) internal successors, (31271), 22100 states have internal predecessors, (31271), 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 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-11-23 04:10:38,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:10:38,712 INFO L93 Difference]: Finished difference Result 65314 states and 92553 transitions. [2021-11-23 04:10:38,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:10:38,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-23 04:10:38,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:10:38,900 INFO L225 Difference]: With dead ends: 65314 [2021-11-23 04:10:38,901 INFO L226 Difference]: Without dead ends: 41938 [2021-11-23 04:10:38,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:10:38,976 INFO L933 BasicCegarLoop]: 31177 mSDtfsCounter, 30454 mSDsluCounter, 31115 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30454 SdHoareTripleChecker+Valid, 62292 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 04:10:38,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30454 Valid, 62292 Invalid, 64 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 04:10:39,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41938 states. [2021-11-23 04:10:40,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41938 to 41908. [2021-11-23 04:10:40,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41908 states, 41860 states have (on average 1.3938365981844243) internal successors, (58346), 41907 states have internal predecessors, (58346), 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) [2021-11-23 04:10:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41908 states to 41908 states and 58346 transitions. [2021-11-23 04:10:40,258 INFO L78 Accepts]: Start accepts. Automaton has 41908 states and 58346 transitions. Word has length 132 [2021-11-23 04:10:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:10:40,261 INFO L470 AbstractCegarLoop]: Abstraction has 41908 states and 58346 transitions. [2021-11-23 04:10:40,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 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) [2021-11-23 04:10:40,263 INFO L276 IsEmpty]: Start isEmpty. Operand 41908 states and 58346 transitions. [2021-11-23 04:10:40,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-23 04:10:40,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:10:40,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:10:40,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 04:10:40,280 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2021-11-23 04:10:40,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:10:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1017703787, now seen corresponding path program 1 times [2021-11-23 04:10:40,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:10:40,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444893671] [2021-11-23 04:10:40,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:10:40,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:10:40,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:10:40,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:10:40,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:10:40,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444893671] [2021-11-23 04:10:40,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444893671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:10:40,716 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:10:40,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:10:40,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160620135] [2021-11-23 04:10:40,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:10:40,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:10:40,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:10:40,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:10:40,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:10:40,722 INFO L87 Difference]: Start difference. First operand 41908 states and 58346 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-23 04:10:42,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:10:42,520 INFO L93 Difference]: Finished difference Result 98677 states and 137438 transitions. [2021-11-23 04:10:42,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:10:42,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 153 [2021-11-23 04:10:42,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:10:42,675 INFO L225 Difference]: With dead ends: 98677 [2021-11-23 04:10:42,676 INFO L226 Difference]: Without dead ends: 57062 [2021-11-23 04:10:42,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:10:42,761 INFO L933 BasicCegarLoop]: 29455 mSDtfsCounter, 25077 mSDsluCounter, 29406 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25077 SdHoareTripleChecker+Valid, 58861 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 04:10:42,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25077 Valid, 58861 Invalid, 78 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 04:10:42,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57062 states. [2021-11-23 04:10:44,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57062 to 56876. [2021-11-23 04:10:44,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56876 states, 56828 states have (on average 1.3942070810164005) internal successors, (79230), 56875 states have internal predecessors, (79230), 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) [2021-11-23 04:10:44,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56876 states to 56876 states and 79230 transitions. [2021-11-23 04:10:44,443 INFO L78 Accepts]: Start accepts. Automaton has 56876 states and 79230 transitions. Word has length 153 [2021-11-23 04:10:44,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:10:44,446 INFO L470 AbstractCegarLoop]: Abstraction has 56876 states and 79230 transitions. [2021-11-23 04:10:44,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-23 04:10:44,447 INFO L276 IsEmpty]: Start isEmpty. Operand 56876 states and 79230 transitions. [2021-11-23 04:10:44,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-23 04:10:44,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:10:44,460 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:10:44,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 04:10:44,461 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2021-11-23 04:10:44,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:10:44,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1097210383, now seen corresponding path program 1 times [2021-11-23 04:10:44,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:10:44,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388634569] [2021-11-23 04:10:44,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:10:44,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:10:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:10:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:10:44,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:10:44,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388634569] [2021-11-23 04:10:44,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388634569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:10:44,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:10:44,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:10:44,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323054128] [2021-11-23 04:10:44,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:10:44,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:10:44,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:10:44,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:10:44,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:10:44,820 INFO L87 Difference]: Start difference. First operand 56876 states and 79230 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:10:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:10:46,340 INFO L93 Difference]: Finished difference Result 141846 states and 197708 transitions. [2021-11-23 04:10:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:10:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 154 [2021-11-23 04:10:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:10:46,560 INFO L225 Difference]: With dead ends: 141846 [2021-11-23 04:10:46,561 INFO L226 Difference]: Without dead ends: 85263 [2021-11-23 04:10:46,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:10:46,652 INFO L933 BasicCegarLoop]: 33494 mSDtfsCounter, 24279 mSDsluCounter, 29407 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24279 SdHoareTripleChecker+Valid, 62901 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 04:10:46,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24279 Valid, 62901 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 04:10:46,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85263 states. [2021-11-23 04:10:48,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85263 to 85075. [2021-11-23 04:10:48,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85075 states, 85027 states have (on average 1.3948980911945617) internal successors, (118604), 85074 states have internal predecessors, (118604), 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) [2021-11-23 04:10:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85075 states to 85075 states and 118604 transitions. [2021-11-23 04:10:49,086 INFO L78 Accepts]: Start accepts. Automaton has 85075 states and 118604 transitions. Word has length 154 [2021-11-23 04:10:49,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:10:49,086 INFO L470 AbstractCegarLoop]: Abstraction has 85075 states and 118604 transitions. [2021-11-23 04:10:49,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 04:10:49,087 INFO L276 IsEmpty]: Start isEmpty. Operand 85075 states and 118604 transitions. [2021-11-23 04:10:49,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-23 04:10:49,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:10:49,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:10:49,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 04:10:49,094 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2021-11-23 04:10:49,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:10:49,095 INFO L85 PathProgramCache]: Analyzing trace with hash 58487794, now seen corresponding path program 1 times [2021-11-23 04:10:49,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:10:49,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188887182] [2021-11-23 04:10:49,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:10:49,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:10:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:10:49,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:10:49,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:10:49,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188887182] [2021-11-23 04:10:49,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188887182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:10:49,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:10:49,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:10:49,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404865207] [2021-11-23 04:10:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:10:49,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:10:49,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:10:49,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:10:49,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:10:49,414 INFO L87 Difference]: Start difference. First operand 85075 states and 118604 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2021-11-23 04:10:52,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:10:52,287 INFO L93 Difference]: Finished difference Result 225876 states and 315008 transitions. [2021-11-23 04:10:52,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:10:52,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 155 [2021-11-23 04:10:52,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:10:52,731 INFO L225 Difference]: With dead ends: 225876 [2021-11-23 04:10:52,732 INFO L226 Difference]: Without dead ends: 141094 [2021-11-23 04:10:52,847 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:10:52,848 INFO L933 BasicCegarLoop]: 38331 mSDtfsCounter, 25077 mSDsluCounter, 29408 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25077 SdHoareTripleChecker+Valid, 67739 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 04:10:52,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25077 Valid, 67739 Invalid, 78 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 04:10:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141094 states. [2021-11-23 04:10:55,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141094 to 140904. [2021-11-23 04:10:55,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140904 states, 140856 states have (on average 1.3950985403532685) internal successors, (196508), 140903 states have internal predecessors, (196508), 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) [2021-11-23 04:10:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140904 states to 140904 states and 196508 transitions. [2021-11-23 04:10:56,118 INFO L78 Accepts]: Start accepts. Automaton has 140904 states and 196508 transitions. Word has length 155 [2021-11-23 04:10:56,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 04:10:56,118 INFO L470 AbstractCegarLoop]: Abstraction has 140904 states and 196508 transitions. [2021-11-23 04:10:56,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2021-11-23 04:10:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 140904 states and 196508 transitions. [2021-11-23 04:10:56,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-23 04:10:56,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 04:10:56,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 04:10:56,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 04:10:56,125 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 45 more)] === [2021-11-23 04:10:56,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 04:10:56,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1700676504, now seen corresponding path program 1 times [2021-11-23 04:10:56,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 04:10:56,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75406232] [2021-11-23 04:10:56,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 04:10:56,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 04:10:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 04:10:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 04:10:56,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 04:10:56,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75406232] [2021-11-23 04:10:56,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75406232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 04:10:56,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 04:10:56,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 04:10:56,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82439362] [2021-11-23 04:10:56,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 04:10:56,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 04:10:56,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 04:10:56,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 04:10:56,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:10:56,783 INFO L87 Difference]: Start difference. First operand 140904 states and 196508 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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) [2021-11-23 04:11:00,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 04:11:00,902 INFO L93 Difference]: Finished difference Result 386816 states and 539675 transitions. [2021-11-23 04:11:00,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 04:11:00,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 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 159 [2021-11-23 04:11:00,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 04:11:01,493 INFO L225 Difference]: With dead ends: 386816 [2021-11-23 04:11:01,494 INFO L226 Difference]: Without dead ends: 246205 [2021-11-23 04:11:01,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 04:11:01,725 INFO L933 BasicCegarLoop]: 29454 mSDtfsCounter, 23639 mSDsluCounter, 29424 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23639 SdHoareTripleChecker+Valid, 58878 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 04:11:01,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23639 Valid, 58878 Invalid, 64 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 04:11:01,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246205 states.