./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-media-radio-wl128x-fm_drv.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-media-radio-wl128x-fm_drv.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 34f21538f85eb9cdaa60d9a1e57757d7a04f90c8b459e1dcc8d118be409846cb --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 17:17:49,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:17:49,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:17:49,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:17:49,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:17:49,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:17:49,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:17:49,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:17:49,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:17:49,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:17:49,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:17:49,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:17:49,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:17:49,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:17:49,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:17:49,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:17:49,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:17:49,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:17:49,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:17:49,376 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:17:49,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:17:49,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:17:49,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:17:49,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:17:49,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:17:49,384 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:17:49,384 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:17:49,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:17:49,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:17:49,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:17:49,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:17:49,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:17:49,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:17:49,388 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:17:49,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:17:49,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:17:49,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:17:49,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:17:49,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:17:49,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:17:49,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:17:49,393 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:17:49,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:17:49,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:17:49,411 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:17:49,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:17:49,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:17:49,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:17:49,413 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:17:49,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:17:49,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:17:49,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:17:49,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:17:49,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:17:49,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:17:49,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:17:49,414 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:17:49,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:17:49,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:17:49,415 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:17:49,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:17:49,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:17:49,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:17:49,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:17:49,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:17:49,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:17:49,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:17:49,416 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:17:49,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:17:49,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:17:49,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:17:49,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34f21538f85eb9cdaa60d9a1e57757d7a04f90c8b459e1dcc8d118be409846cb [2021-11-07 17:17:49,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:17:49,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:17:49,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:17:49,640 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:17:49,641 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:17:49,642 INFO L432 ainManager$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-media-radio-wl128x-fm_drv.cil.i [2021-11-07 17:17:49,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/010c4c57f/2598a473e4fb4a6ba7ebc2f669b755ee/FLAG3b708a5e0 [2021-11-07 17:17:50,296 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:17:50,297 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-media-radio-wl128x-fm_drv.cil.i [2021-11-07 17:17:50,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/010c4c57f/2598a473e4fb4a6ba7ebc2f669b755ee/FLAG3b708a5e0 [2021-11-07 17:17:50,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/010c4c57f/2598a473e4fb4a6ba7ebc2f669b755ee [2021-11-07 17:17:50,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:17:50,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:17:50,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:17:50,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:17:50,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:17:50,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:17:50" (1/1) ... [2021-11-07 17:17:50,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127040ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:50, skipping insertion in model container [2021-11-07 17:17:50,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:17:50" (1/1) ... [2021-11-07 17:17:50,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:17:50,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:17:52,369 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-media-radio-wl128x-fm_drv.cil.i[325823,325836] [2021-11-07 17:17:52,371 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-media-radio-wl128x-fm_drv.cil.i[325992,326005] [2021-11-07 17:17:52,371 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-media-radio-wl128x-fm_drv.cil.i[326159,326172] [2021-11-07 17:17:52,372 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-media-radio-wl128x-fm_drv.cil.i[326327,326340] [2021-11-07 17:17:52,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:17:52,406 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:17:52,652 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-media-radio-wl128x-fm_drv.cil.i[325823,325836] [2021-11-07 17:17:52,653 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-media-radio-wl128x-fm_drv.cil.i[325992,326005] [2021-11-07 17:17:52,653 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-media-radio-wl128x-fm_drv.cil.i[326159,326172] [2021-11-07 17:17:52,653 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-media-radio-wl128x-fm_drv.cil.i[326327,326340] [2021-11-07 17:17:52,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:17:52,797 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:17:52,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52 WrapperNode [2021-11-07 17:17:52,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:17:52,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:17:52,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:17:52,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:17:52,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:52,870 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:55,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:17:55,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:17:55,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:17:55,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:17:55,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:55,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:56,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:56,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:57,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:57,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:58,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:58,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:17:58,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:17:58,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:17:58,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:17:58,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (1/1) ... [2021-11-07 17:17:58,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:17:58,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:17:58,535 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 17:17:58,540 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 17:17:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:17:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:17:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:17:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:17:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:17:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:17:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:17:58,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:17:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:17:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:17:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:17:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:17:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:17:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:17:58,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:19:14,675 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 17:19:14,675 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 17:19:14,676 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:19:14,677 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:19:14,678 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 17:19:14,680 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:19:14,681 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:19:14,737 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:19:14,738 INFO L299 CfgBuilder]: Removed 20891 assume(true) statements. [2021-11-07 17:19:14,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:19:14 BoogieIcfgContainer [2021-11-07 17:19:14,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:19:14,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:19:14,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:19:14,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:19:14,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:17:50" (1/3) ... [2021-11-07 17:19:14,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727d1212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:19:14, skipping insertion in model container [2021-11-07 17:19:14,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:17:52" (2/3) ... [2021-11-07 17:19:14,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727d1212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:19:14, skipping insertion in model container [2021-11-07 17:19:14,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:19:14" (3/3) ... [2021-11-07 17:19:14,757 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-07 17:19:14,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:19:14,761 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 390 error locations. [2021-11-07 17:19:14,832 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:19:14,836 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 17:19:14,836 INFO L340 AbstractCegarLoop]: Starting to check reachability of 390 error locations. [2021-11-07 17:19:15,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 21626 states, 21236 states have (on average 1.3931531361838387) internal successors, (29585), 21625 states have internal predecessors, (29585), 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 17:19:15,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-07 17:19:15,042 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:19:15,043 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] [2021-11-07 17:19:15,043 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-07 17:19:15,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:19:15,050 INFO L85 PathProgramCache]: Analyzing trace with hash -2049477516, now seen corresponding path program 1 times [2021-11-07 17:19:15,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:19:15,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204490180] [2021-11-07 17:19:15,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:19:15,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:19:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:19:15,814 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 17:19:15,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:19:15,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204490180] [2021-11-07 17:19:15,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204490180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:19:15,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:19:15,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:19:15,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413698608] [2021-11-07 17:19:15,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:19:15,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:19:15,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:19:15,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:19:15,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:15,896 INFO L87 Difference]: Start difference. First operand has 21626 states, 21236 states have (on average 1.3931531361838387) internal successors, (29585), 21625 states have internal predecessors, (29585), 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 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 17:19:17,964 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 17:19:19,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:19:19,208 INFO L93 Difference]: Finished difference Result 64171 states and 87854 transitions. [2021-11-07 17:19:19,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:19:19,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2021-11-07 17:19:19,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:19:19,357 INFO L225 Difference]: With dead ends: 64171 [2021-11-07 17:19:19,358 INFO L226 Difference]: Without dead ends: 39641 [2021-11-07 17:19:19,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.98ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:19,424 INFO L933 BasicCegarLoop]: 29182 mSDtfsCounter, 28736 mSDsluCounter, 28978 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2121.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28736 SdHoareTripleChecker+Valid, 58160 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 100.87ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2277.77ms IncrementalHoareTripleChecker+Time [2021-11-07 17:19:19,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28736 Valid, 58160 Invalid, 54 Unknown, 0 Unchecked, 100.87ms Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 2277.77ms Time] [2021-11-07 17:19:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39641 states. [2021-11-07 17:19:20,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39641 to 38915. [2021-11-07 17:19:20,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38915 states, 38525 states have (on average 1.328825438027255) internal successors, (51193), 38914 states have internal predecessors, (51193), 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 17:19:20,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38915 states to 38915 states and 51193 transitions. [2021-11-07 17:19:20,727 INFO L78 Accepts]: Start accepts. Automaton has 38915 states and 51193 transitions. Word has length 80 [2021-11-07 17:19:20,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:19:20,728 INFO L470 AbstractCegarLoop]: Abstraction has 38915 states and 51193 transitions. [2021-11-07 17:19:20,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 17:19:20,729 INFO L276 IsEmpty]: Start isEmpty. Operand 38915 states and 51193 transitions. [2021-11-07 17:19:20,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-07 17:19:20,731 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:19:20,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:19:20,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:19:20,732 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-07 17:19:20,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:19:20,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1456535030, now seen corresponding path program 1 times [2021-11-07 17:19:20,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:19:20,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764117761] [2021-11-07 17:19:20,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:19:20,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:19:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:19:20,992 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 17:19:20,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:19:20,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764117761] [2021-11-07 17:19:20,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764117761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:19:20,995 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:19:20,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:19:20,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733025030] [2021-11-07 17:19:20,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:19:20,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:19:20,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:19:20,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:19:20,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:20,998 INFO L87 Difference]: Start difference. First operand 38915 states and 51193 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:19:23,046 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 17:19:24,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:19:24,832 INFO L93 Difference]: Finished difference Result 96277 states and 126365 transitions. [2021-11-07 17:19:24,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:19:24,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-07 17:19:24,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:19:24,985 INFO L225 Difference]: With dead ends: 96277 [2021-11-07 17:19:24,985 INFO L226 Difference]: Without dead ends: 57518 [2021-11-07 17:19:25,051 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:25,052 INFO L933 BasicCegarLoop]: 26020 mSDtfsCounter, 24982 mSDsluCounter, 26004 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2092.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24982 SdHoareTripleChecker+Valid, 52024 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.09ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2263.29ms IncrementalHoareTripleChecker+Time [2021-11-07 17:19:25,053 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24982 Valid, 52024 Invalid, 33 Unknown, 0 Unchecked, 54.09ms Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2263.29ms Time] [2021-11-07 17:19:25,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57518 states. [2021-11-07 17:19:26,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57518 to 56676. [2021-11-07 17:19:26,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56676 states, 56286 states have (on average 1.3296912198415236) internal successors, (74843), 56675 states have internal predecessors, (74843), 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 17:19:26,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56676 states to 56676 states and 74843 transitions. [2021-11-07 17:19:26,517 INFO L78 Accepts]: Start accepts. Automaton has 56676 states and 74843 transitions. Word has length 84 [2021-11-07 17:19:26,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:19:26,518 INFO L470 AbstractCegarLoop]: Abstraction has 56676 states and 74843 transitions. [2021-11-07 17:19:26,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 17:19:26,519 INFO L276 IsEmpty]: Start isEmpty. Operand 56676 states and 74843 transitions. [2021-11-07 17:19:26,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 17:19:26,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:19:26,520 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 17:19:26,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:19:26,521 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-07 17:19:26,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:19:26,521 INFO L85 PathProgramCache]: Analyzing trace with hash 774548603, now seen corresponding path program 1 times [2021-11-07 17:19:26,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:19:26,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729121172] [2021-11-07 17:19:26,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:19:26,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:19:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:19:26,708 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 17:19:26,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:19:26,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729121172] [2021-11-07 17:19:26,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729121172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:19:26,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:19:26,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:19:26,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248333844] [2021-11-07 17:19:26,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:19:26,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:19:26,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:19:26,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:19:26,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:26,714 INFO L87 Difference]: Start difference. First operand 56676 states and 74843 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 17:19:28,764 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 17:19:29,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:19:29,917 INFO L93 Difference]: Finished difference Result 104725 states and 138299 transitions. [2021-11-07 17:19:29,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:19:29,918 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 17:19:29,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:19:30,032 INFO L225 Difference]: With dead ends: 104725 [2021-11-07 17:19:30,032 INFO L226 Difference]: Without dead ends: 48205 [2021-11-07 17:19:30,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:30,101 INFO L933 BasicCegarLoop]: 22251 mSDtfsCounter, 22071 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2050.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22071 SdHoareTripleChecker+Valid, 22424 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.42ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2223.73ms IncrementalHoareTripleChecker+Time [2021-11-07 17:19:30,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22071 Valid, 22424 Invalid, 4 Unknown, 0 Unchecked, 21.42ms Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2223.73ms Time] [2021-11-07 17:19:30,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48205 states. [2021-11-07 17:19:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48205 to 48205. [2021-11-07 17:19:30,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48205 states, 47867 states have (on average 1.3292038356278857) internal successors, (63625), 48204 states have internal predecessors, (63625), 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 17:19:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48205 states to 48205 states and 63625 transitions. [2021-11-07 17:19:31,208 INFO L78 Accepts]: Start accepts. Automaton has 48205 states and 63625 transitions. Word has length 86 [2021-11-07 17:19:31,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:19:31,208 INFO L470 AbstractCegarLoop]: Abstraction has 48205 states and 63625 transitions. [2021-11-07 17:19:31,209 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 17:19:31,209 INFO L276 IsEmpty]: Start isEmpty. Operand 48205 states and 63625 transitions. [2021-11-07 17:19:31,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-07 17:19:31,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:19:31,211 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] [2021-11-07 17:19:31,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:19:31,212 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr123ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-07 17:19:31,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:19:31,212 INFO L85 PathProgramCache]: Analyzing trace with hash 951472750, now seen corresponding path program 1 times [2021-11-07 17:19:31,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:19:31,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88896065] [2021-11-07 17:19:31,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:19:31,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:19:31,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:19:31,398 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 17:19:31,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:19:31,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88896065] [2021-11-07 17:19:31,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88896065] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:19:31,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:19:31,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:19:31,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82436358] [2021-11-07 17:19:31,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:19:31,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:19:31,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:19:31,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:19:31,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:31,401 INFO L87 Difference]: Start difference. First operand 48205 states and 63625 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 17:19:33,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:19:34,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:19:34,573 INFO L93 Difference]: Finished difference Result 86950 states and 114511 transitions. [2021-11-07 17:19:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:19:34,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2021-11-07 17:19:34,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:19:34,665 INFO L225 Difference]: With dead ends: 86950 [2021-11-07 17:19:34,666 INFO L226 Difference]: Without dead ends: 38901 [2021-11-07 17:19:34,734 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:34,736 INFO L933 BasicCegarLoop]: 22241 mSDtfsCounter, 3407 mSDsluCounter, 22171 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2156.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3407 SdHoareTripleChecker+Valid, 44412 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.40ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2331.30ms IncrementalHoareTripleChecker+Time [2021-11-07 17:19:34,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3407 Valid, 44412 Invalid, 102 Unknown, 0 Unchecked, 22.40ms Time], IncrementalHoareTripleChecker [13 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2331.30ms Time] [2021-11-07 17:19:34,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38901 states. [2021-11-07 17:19:35,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38901 to 38667. [2021-11-07 17:19:35,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38667 states, 38329 states have (on average 1.326358631845339) internal successors, (50838), 38666 states have internal predecessors, (50838), 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 17:19:35,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38667 states to 38667 states and 50838 transitions. [2021-11-07 17:19:35,634 INFO L78 Accepts]: Start accepts. Automaton has 38667 states and 50838 transitions. Word has length 101 [2021-11-07 17:19:35,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:19:35,635 INFO L470 AbstractCegarLoop]: Abstraction has 38667 states and 50838 transitions. [2021-11-07 17:19:35,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 17:19:35,635 INFO L276 IsEmpty]: Start isEmpty. Operand 38667 states and 50838 transitions. [2021-11-07 17:19:35,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 17:19:35,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:19:35,637 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:19:35,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:19:35,637 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-07 17:19:35,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:19:35,638 INFO L85 PathProgramCache]: Analyzing trace with hash -420140612, now seen corresponding path program 1 times [2021-11-07 17:19:35,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:19:35,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529669572] [2021-11-07 17:19:35,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:19:35,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:19:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:19:35,831 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 17:19:35,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:19:35,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529669572] [2021-11-07 17:19:35,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529669572] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:19:35,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:19:35,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:19:35,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618129581] [2021-11-07 17:19:35,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:19:35,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:19:35,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:19:35,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:19:35,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:35,836 INFO L87 Difference]: Start difference. First operand 38667 states and 50838 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 17:19:37,880 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:19:39,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:19:39,397 INFO L93 Difference]: Finished difference Result 111625 states and 146933 transitions. [2021-11-07 17:19:39,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:19:39,399 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 17:19:39,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:19:39,545 INFO L225 Difference]: With dead ends: 111625 [2021-11-07 17:19:39,546 INFO L226 Difference]: Without dead ends: 74781 [2021-11-07 17:19:39,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:39,608 INFO L933 BasicCegarLoop]: 43996 mSDtfsCounter, 21753 mSDsluCounter, 22215 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2106.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21753 SdHoareTripleChecker+Valid, 66211 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.18ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2301.32ms IncrementalHoareTripleChecker+Time [2021-11-07 17:19:39,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21753 Valid, 66211 Invalid, 50 Unknown, 0 Unchecked, 41.18ms Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 1 Unknown, 0 Unchecked, 2301.32ms Time] [2021-11-07 17:19:39,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74781 states. [2021-11-07 17:19:41,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74781 to 74159. [2021-11-07 17:19:41,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74159 states, 73821 states have (on average 1.329269449072757) internal successors, (98128), 74158 states have internal predecessors, (98128), 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 17:19:41,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74159 states to 74159 states and 98128 transitions. [2021-11-07 17:19:41,288 INFO L78 Accepts]: Start accepts. Automaton has 74159 states and 98128 transitions. Word has length 113 [2021-11-07 17:19:41,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:19:41,289 INFO L470 AbstractCegarLoop]: Abstraction has 74159 states and 98128 transitions. [2021-11-07 17:19:41,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 17:19:41,289 INFO L276 IsEmpty]: Start isEmpty. Operand 74159 states and 98128 transitions. [2021-11-07 17:19:41,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 17:19:41,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:19:41,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 17:19:41,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:19:41,291 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-07 17:19:41,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:19:41,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1237789062, now seen corresponding path program 1 times [2021-11-07 17:19:41,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:19:41,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631496522] [2021-11-07 17:19:41,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:19:41,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:19:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:19:41,509 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 17:19:41,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:19:41,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631496522] [2021-11-07 17:19:41,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631496522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:19:41,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:19:41,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:19:41,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902503304] [2021-11-07 17:19:41,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:19:41,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:19:41,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:19:41,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:19:41,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:41,512 INFO L87 Difference]: Start difference. First operand 74159 states and 98128 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 17:19:43,562 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 17:19:45,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:19:45,620 INFO L93 Difference]: Finished difference Result 182613 states and 241521 transitions. [2021-11-07 17:19:45,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:19:45,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 17:19:45,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:19:46,032 INFO L225 Difference]: With dead ends: 182613 [2021-11-07 17:19:46,032 INFO L226 Difference]: Without dead ends: 110277 [2021-11-07 17:19:46,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:19:46,178 INFO L933 BasicCegarLoop]: 43996 mSDtfsCounter, 21787 mSDsluCounter, 22182 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2118.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 21787 SdHoareTripleChecker+Valid, 66178 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.71ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2280.67ms IncrementalHoareTripleChecker+Time [2021-11-07 17:19:46,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21787 Valid, 66178 Invalid, 52 Unknown, 0 Unchecked, 39.71ms Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 2280.67ms Time] [2021-11-07 17:19:46,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110277 states. [2021-11-07 17:19:48,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110277 to 109622. [2021-11-07 17:19:48,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109622 states, 109284 states have (on average 1.3303777314153948) internal successors, (145389), 109621 states have internal predecessors, (145389), 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 17:19:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109622 states to 109622 states and 145389 transitions. [2021-11-07 17:19:48,756 INFO L78 Accepts]: Start accepts. Automaton has 109622 states and 145389 transitions. Word has length 113 [2021-11-07 17:19:48,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:19:48,756 INFO L470 AbstractCegarLoop]: Abstraction has 109622 states and 145389 transitions. [2021-11-07 17:19:48,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 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 17:19:48,757 INFO L276 IsEmpty]: Start isEmpty. Operand 109622 states and 145389 transitions. [2021-11-07 17:19:48,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 17:19:48,758 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:19:48,758 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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 17:19:48,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:19:48,759 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-07 17:19:48,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:19:48,759 INFO L85 PathProgramCache]: Analyzing trace with hash 997639822, now seen corresponding path program 1 times [2021-11-07 17:19:48,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:19:48,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814214902] [2021-11-07 17:19:48,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:19:48,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:19:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:19:49,001 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 17:19:49,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:19:49,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814214902] [2021-11-07 17:19:49,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814214902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:19:49,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:19:49,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:19:49,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543998245] [2021-11-07 17:19:49,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:19:49,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:19:49,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:19:49,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:19:49,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:19:49,004 INFO L87 Difference]: Start difference. First operand 109622 states and 145389 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 17:19:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:19:51,575 INFO L93 Difference]: Finished difference Result 109622 states and 145389 transitions. [2021-11-07 17:19:51,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:19:51,575 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 113 [2021-11-07 17:19:51,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:19:51,821 INFO L225 Difference]: With dead ends: 109622 [2021-11-07 17:19:51,821 INFO L226 Difference]: Without dead ends: 109616 [2021-11-07 17:19:51,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.61ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:19:51,860 INFO L933 BasicCegarLoop]: 22241 mSDtfsCounter, 22153 mSDsluCounter, 22172 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 100.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22153 SdHoareTripleChecker+Valid, 44413 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.93ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.39ms IncrementalHoareTripleChecker+Time [2021-11-07 17:19:51,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22153 Valid, 44413 Invalid, 79 Unknown, 0 Unchecked, 56.93ms Time], IncrementalHoareTripleChecker [25 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 115.39ms Time] [2021-11-07 17:19:51,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109616 states. [2021-11-07 17:19:54,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109616 to 109616. [2021-11-07 17:19:54,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109616 states, 109281 states have (on average 1.3303593488346557) internal successors, (145383), 109615 states have internal predecessors, (145383), 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 17:19:54,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109616 states to 109616 states and 145383 transitions. [2021-11-07 17:19:54,521 INFO L78 Accepts]: Start accepts. Automaton has 109616 states and 145383 transitions. Word has length 113 [2021-11-07 17:19:54,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:19:54,521 INFO L470 AbstractCegarLoop]: Abstraction has 109616 states and 145383 transitions. [2021-11-07 17:19:54,522 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 17:19:54,522 INFO L276 IsEmpty]: Start isEmpty. Operand 109616 states and 145383 transitions. [2021-11-07 17:19:54,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-07 17:19:54,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:19:54,524 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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 17:19:54,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 17:19:54,525 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-07 17:19:54,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:19:54,525 INFO L85 PathProgramCache]: Analyzing trace with hash 954318385, now seen corresponding path program 1 times [2021-11-07 17:19:54,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:19:54,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136557182] [2021-11-07 17:19:54,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:19:54,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:19:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:19:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-07 17:19:55,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:19:55,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136557182] [2021-11-07 17:19:55,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136557182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:19:55,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:19:55,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:19:55,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377322624] [2021-11-07 17:19:55,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:19:55,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 17:19:55,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:19:55,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 17:19:55,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 17:19:55,015 INFO L87 Difference]: Start difference. First operand 109616 states and 145383 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 17:19:56,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:19:56,931 INFO L93 Difference]: Finished difference Result 109616 states and 145383 transitions. [2021-11-07 17:19:56,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 17:19:56,932 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 115 [2021-11-07 17:19:56,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:19:57,205 INFO L225 Difference]: With dead ends: 109616 [2021-11-07 17:19:57,205 INFO L226 Difference]: Without dead ends: 109610 [2021-11-07 17:19:57,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.23ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:19:57,248 INFO L933 BasicCegarLoop]: 22235 mSDtfsCounter, 22142 mSDsluCounter, 22169 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 121.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22142 SdHoareTripleChecker+Valid, 44404 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 44.63ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 157.15ms IncrementalHoareTripleChecker+Time [2021-11-07 17:19:57,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22142 Valid, 44404 Invalid, 79 Unknown, 0 Unchecked, 44.63ms Time], IncrementalHoareTripleChecker [28 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 157.15ms Time] [2021-11-07 17:19:57,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109610 states.