./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU --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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:08:57,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:08:57,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:08:57,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:08:57,558 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:08:57,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:08:57,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:08:57,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:08:57,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:08:57,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:08:57,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:08:57,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:08:57,587 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:08:57,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:08:57,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:08:57,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:08:57,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:08:57,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:08:57,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:08:57,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:08:57,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:08:57,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:08:57,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:08:57,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:08:57,626 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:08:57,626 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:08:57,627 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:08:57,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:08:57,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:08:57,631 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:08:57,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:08:57,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:08:57,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:08:57,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:08:57,637 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:08:57,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:08:57,638 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:08:57,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:08:57,639 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:08:57,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:08:57,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:08:57,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 23:08:57,682 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:08:57,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:08:57,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:08:57,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:08:57,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:08:57,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:08:57,686 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:08:57,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:08:57,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:08:57,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:08:57,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:08:57,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:08:57,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:08:57,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:08:57,689 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:08:57,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:08:57,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:08:57,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:08:57,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:08:57,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:08:57,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:08:57,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:08:57,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:08:57,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:08:57,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:08:57,691 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:08:57,691 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:08:57,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:08:57,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:08:57,693 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-02 23:08:58,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:08:58,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:08:58,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:08:58,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:08:58,039 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:08:58,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-02 23:08:58,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/data/b7a4b0082/702d731a7fec48feb4b260c137de83f3/FLAG9cf36f993 [2021-11-02 23:08:59,140 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:08:59,142 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-02 23:08:59,214 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/data/b7a4b0082/702d731a7fec48feb4b260c137de83f3/FLAG9cf36f993 [2021-11-02 23:08:59,510 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/data/b7a4b0082/702d731a7fec48feb4b260c137de83f3 [2021-11-02 23:08:59,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:08:59,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:08:59,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:08:59,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:08:59,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:08:59,519 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d843c5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:59, skipping insertion in model container [2021-11-02 23:08:59,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:08:59" (1/1) ... [2021-11-02 23:08:59,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:08:59,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:09:02,910 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-02 23:09:02,913 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-02 23:09:02,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-02 23:09:02,927 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-02 23:09:02,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:09:03,007 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:09:03,465 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[347848,347861] [2021-11-02 23:09:03,466 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348017,348030] [2021-11-02 23:09:03,466 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348184,348197] [2021-11-02 23:09:03,467 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i[348352,348365] [2021-11-02 23:09:03,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:09:03,673 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:09:03,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03 WrapperNode [2021-11-02 23:09:03,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:09:03,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:09:03,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:09:03,675 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:09:03,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:03,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:04,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:09:04,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:09:04,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:09:04,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:09:04,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:04,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:04,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:04,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:05,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:05,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:05,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:06,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:09:06,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:09:06,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:09:06,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:09:06,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (1/1) ... [2021-11-02 23:09:06,080 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:09:06,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:06,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 23:09:06,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51598fc0-c768-430a-b924-642cab5f4cb6/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 23:09:06,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:09:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 23:09:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 23:09:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:09:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:09:06,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:09:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-02 23:09:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:09:06,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:09:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 23:09:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 23:09:06,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:09:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:09:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:09:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:09:06,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:10:16,003 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-02 23:10:16,003 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-02 23:10:16,004 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-02 23:10:16,004 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-02 23:10:16,005 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-02 23:10:16,006 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-02 23:10:16,007 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-02 23:10:16,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:10:16,057 INFO L299 CfgBuilder]: Removed 5799 assume(true) statements. [2021-11-02 23:10:16,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:10:16 BoogieIcfgContainer [2021-11-02 23:10:16,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:10:16,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:10:16,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:10:16,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:10:16,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:08:59" (1/3) ... [2021-11-02 23:10:16,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af6d336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:10:16, skipping insertion in model container [2021-11-02 23:10:16,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:09:03" (2/3) ... [2021-11-02 23:10:16,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af6d336 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:10:16, skipping insertion in model container [2021-11-02 23:10:16,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:10:16" (3/3) ... [2021-11-02 23:10:16,074 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-02 23:10:16,080 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:10:16,080 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2021-11-02 23:10:16,153 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:10:16,159 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 [2021-11-02 23:10:16,159 INFO L340 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2021-11-02 23:10:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 5442 states, 5381 states have (on average 1.3413863594127486) internal successors, (7218), 5441 states have internal predecessors, (7218), 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) [2021-11-02 23:10:16,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-02 23:10:16,262 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:16,263 INFO L513 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] [2021-11-02 23:10:16,263 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:16,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:16,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2097704285, now seen corresponding path program 1 times [2021-11-02 23:10:16,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:16,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440639500] [2021-11-02 23:10:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:16,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:17,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:17,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440639500] [2021-11-02 23:10:17,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440639500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:17,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:17,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:17,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133705664] [2021-11-02 23:10:17,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:17,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:17,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:17,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:17,385 INFO L87 Difference]: Start difference. First operand has 5442 states, 5381 states have (on average 1.3413863594127486) internal successors, (7218), 5441 states have internal predecessors, (7218), 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 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-02 23:10:20,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:20,455 INFO L93 Difference]: Finished difference Result 15656 states and 20767 transitions. [2021-11-02 23:10:20,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:20,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-02 23:10:20,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:20,542 INFO L225 Difference]: With dead ends: 15656 [2021-11-02 23:10:20,542 INFO L226 Difference]: Without dead ends: 10010 [2021-11-02 23:10:20,565 INFO L786 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 [2021-11-02 23:10:20,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10010 states. [2021-11-02 23:10:20,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10010 to 8653. [2021-11-02 23:10:20,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8653 states, 8592 states have (on average 1.2932960893854748) internal successors, (11112), 8652 states have internal predecessors, (11112), 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) [2021-11-02 23:10:20,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8653 states to 8653 states and 11112 transitions. [2021-11-02 23:10:20,984 INFO L78 Accepts]: Start accepts. Automaton has 8653 states and 11112 transitions. Word has length 50 [2021-11-02 23:10:20,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:20,985 INFO L470 AbstractCegarLoop]: Abstraction has 8653 states and 11112 transitions. [2021-11-02 23:10:20,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-02 23:10:20,986 INFO L276 IsEmpty]: Start isEmpty. Operand 8653 states and 11112 transitions. [2021-11-02 23:10:20,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-02 23:10:20,990 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:20,990 INFO L513 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] [2021-11-02 23:10:20,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:10:20,991 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:20,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:20,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1423488389, now seen corresponding path program 1 times [2021-11-02 23:10:20,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:20,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996547093] [2021-11-02 23:10:20,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:20,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:21,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:21,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:21,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996547093] [2021-11-02 23:10:21,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996547093] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:21,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:21,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:21,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887356736] [2021-11-02 23:10:21,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:21,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:21,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:21,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:21,392 INFO L87 Difference]: Start difference. First operand 8653 states and 11112 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-02 23:10:24,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:24,191 INFO L93 Difference]: Finished difference Result 25473 states and 32799 transitions. [2021-11-02 23:10:24,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:24,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2021-11-02 23:10:24,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:24,313 INFO L225 Difference]: With dead ends: 25473 [2021-11-02 23:10:24,313 INFO L226 Difference]: Without dead ends: 16912 [2021-11-02 23:10:24,332 INFO L786 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 [2021-11-02 23:10:24,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16912 states. [2021-11-02 23:10:24,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16912 to 16868. [2021-11-02 23:10:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16868 states, 16807 states have (on average 1.2943416433628845) internal successors, (21754), 16867 states have internal predecessors, (21754), 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) [2021-11-02 23:10:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16868 states to 16868 states and 21754 transitions. [2021-11-02 23:10:24,951 INFO L78 Accepts]: Start accepts. Automaton has 16868 states and 21754 transitions. Word has length 52 [2021-11-02 23:10:24,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:24,953 INFO L470 AbstractCegarLoop]: Abstraction has 16868 states and 21754 transitions. [2021-11-02 23:10:24,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 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) [2021-11-02 23:10:24,954 INFO L276 IsEmpty]: Start isEmpty. Operand 16868 states and 21754 transitions. [2021-11-02 23:10:24,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-02 23:10:24,960 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:24,966 INFO L513 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] [2021-11-02 23:10:24,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:10:24,967 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:24,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:24,968 INFO L85 PathProgramCache]: Analyzing trace with hash -475618733, now seen corresponding path program 1 times [2021-11-02 23:10:24,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:24,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015003398] [2021-11-02 23:10:24,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:24,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:25,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:25,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:25,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015003398] [2021-11-02 23:10:25,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015003398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:25,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:25,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:25,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147916546] [2021-11-02 23:10:25,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:25,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:25,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:25,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:25,356 INFO L87 Difference]: Start difference. First operand 16868 states and 21754 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-02 23:10:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:28,967 INFO L93 Difference]: Finished difference Result 47272 states and 60910 transitions. [2021-11-02 23:10:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:28,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2021-11-02 23:10:28,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:29,062 INFO L225 Difference]: With dead ends: 47272 [2021-11-02 23:10:29,063 INFO L226 Difference]: Without dead ends: 30496 [2021-11-02 23:10:29,102 INFO L786 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 [2021-11-02 23:10:29,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30496 states. [2021-11-02 23:10:29,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30496 to 28968. [2021-11-02 23:10:29,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28968 states, 28907 states have (on average 1.2918670218286228) internal successors, (37344), 28967 states have internal predecessors, (37344), 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) [2021-11-02 23:10:30,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28968 states to 28968 states and 37344 transitions. [2021-11-02 23:10:30,112 INFO L78 Accepts]: Start accepts. Automaton has 28968 states and 37344 transitions. Word has length 56 [2021-11-02 23:10:30,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:30,114 INFO L470 AbstractCegarLoop]: Abstraction has 28968 states and 37344 transitions. [2021-11-02 23:10:30,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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) [2021-11-02 23:10:30,115 INFO L276 IsEmpty]: Start isEmpty. Operand 28968 states and 37344 transitions. [2021-11-02 23:10:30,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-02 23:10:30,117 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:30,117 INFO L513 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] [2021-11-02 23:10:30,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:10:30,118 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:30,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:30,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1528840602, now seen corresponding path program 1 times [2021-11-02 23:10:30,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:30,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088833904] [2021-11-02 23:10:30,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:30,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:30,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:30,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088833904] [2021-11-02 23:10:30,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088833904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:30,459 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:30,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:30,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550699985] [2021-11-02 23:10:30,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:30,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:30,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:30,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:30,461 INFO L87 Difference]: Start difference. First operand 28968 states and 37344 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-02 23:10:33,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:33,491 INFO L93 Difference]: Finished difference Result 47063 states and 60689 transitions. [2021-11-02 23:10:33,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:33,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2021-11-02 23:10:33,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:33,542 INFO L225 Difference]: With dead ends: 47063 [2021-11-02 23:10:33,543 INFO L226 Difference]: Without dead ends: 18187 [2021-11-02 23:10:33,593 INFO L786 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 [2021-11-02 23:10:33,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18187 states. [2021-11-02 23:10:34,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18187 to 18081. [2021-11-02 23:10:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18081 states, 18020 states have (on average 1.2918978912319645) internal successors, (23280), 18080 states have internal predecessors, (23280), 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) [2021-11-02 23:10:34,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18081 states to 18081 states and 23280 transitions. [2021-11-02 23:10:34,357 INFO L78 Accepts]: Start accepts. Automaton has 18081 states and 23280 transitions. Word has length 70 [2021-11-02 23:10:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:34,357 INFO L470 AbstractCegarLoop]: Abstraction has 18081 states and 23280 transitions. [2021-11-02 23:10:34,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2021-11-02 23:10:34,358 INFO L276 IsEmpty]: Start isEmpty. Operand 18081 states and 23280 transitions. [2021-11-02 23:10:34,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-02 23:10:34,361 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:34,361 INFO L513 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] [2021-11-02 23:10:34,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:10:34,362 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:34,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:34,363 INFO L85 PathProgramCache]: Analyzing trace with hash 980879748, now seen corresponding path program 1 times [2021-11-02 23:10:34,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:34,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205838971] [2021-11-02 23:10:34,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:34,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:34,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:34,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:34,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205838971] [2021-11-02 23:10:34,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205838971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:34,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:34,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:34,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054061614] [2021-11-02 23:10:34,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:34,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:34,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:34,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:34,769 INFO L87 Difference]: Start difference. First operand 18081 states and 23280 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-02 23:10:37,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:37,922 INFO L93 Difference]: Finished difference Result 53029 states and 68411 transitions. [2021-11-02 23:10:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:37,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-02 23:10:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:38,012 INFO L225 Difference]: With dead ends: 53029 [2021-11-02 23:10:38,012 INFO L226 Difference]: Without dead ends: 35211 [2021-11-02 23:10:38,052 INFO L786 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 [2021-11-02 23:10:38,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35211 states. [2021-11-02 23:10:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35211 to 35167. [2021-11-02 23:10:38,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35167 states, 35106 states have (on average 1.2924286446761237) internal successors, (45372), 35166 states have internal predecessors, (45372), 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) [2021-11-02 23:10:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35167 states to 35167 states and 45372 transitions. [2021-11-02 23:10:38,863 INFO L78 Accepts]: Start accepts. Automaton has 35167 states and 45372 transitions. Word has length 78 [2021-11-02 23:10:38,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:38,863 INFO L470 AbstractCegarLoop]: Abstraction has 35167 states and 45372 transitions. [2021-11-02 23:10:38,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-02 23:10:38,864 INFO L276 IsEmpty]: Start isEmpty. Operand 35167 states and 45372 transitions. [2021-11-02 23:10:38,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-02 23:10:38,866 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:38,866 INFO L513 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] [2021-11-02 23:10:38,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 23:10:38,867 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:38,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:38,867 INFO L85 PathProgramCache]: Analyzing trace with hash -40188606, now seen corresponding path program 1 times [2021-11-02 23:10:38,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:38,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334118823] [2021-11-02 23:10:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:38,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:39,385 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:39,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:39,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334118823] [2021-11-02 23:10:39,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334118823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:39,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:39,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:39,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920588813] [2021-11-02 23:10:39,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:10:39,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:39,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:10:39,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:10:39,388 INFO L87 Difference]: Start difference. First operand 35167 states and 45372 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-02 23:10:42,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:42,733 INFO L93 Difference]: Finished difference Result 87209 states and 112611 transitions. [2021-11-02 23:10:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:10:42,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-02 23:10:42,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:42,880 INFO L225 Difference]: With dead ends: 87209 [2021-11-02 23:10:42,880 INFO L226 Difference]: Without dead ends: 52305 [2021-11-02 23:10:42,934 INFO L786 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 [2021-11-02 23:10:42,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52305 states. [2021-11-02 23:10:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52305 to 52212. [2021-11-02 23:10:44,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52212 states, 52151 states have (on average 1.2928419397518744) internal successors, (67423), 52211 states have internal predecessors, (67423), 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) [2021-11-02 23:10:44,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52212 states to 52212 states and 67423 transitions. [2021-11-02 23:10:44,347 INFO L78 Accepts]: Start accepts. Automaton has 52212 states and 67423 transitions. Word has length 78 [2021-11-02 23:10:44,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:44,347 INFO L470 AbstractCegarLoop]: Abstraction has 52212 states and 67423 transitions. [2021-11-02 23:10:44,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-02 23:10:44,348 INFO L276 IsEmpty]: Start isEmpty. Operand 52212 states and 67423 transitions. [2021-11-02 23:10:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-02 23:10:44,349 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:44,350 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-02 23:10:44,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 23:10:44,350 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:44,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:44,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1693939489, now seen corresponding path program 1 times [2021-11-02 23:10:44,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:44,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458901799] [2021-11-02 23:10:44,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:44,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-02 23:10:44,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:44,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458901799] [2021-11-02 23:10:44,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458901799] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:44,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:44,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:44,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556185986] [2021-11-02 23:10:44,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:10:44,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:44,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:10:44,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:10:44,807 INFO L87 Difference]: Start difference. First operand 52212 states and 67423 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-02 23:10:46,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:46,702 INFO L93 Difference]: Finished difference Result 52212 states and 67423 transitions. [2021-11-02 23:10:46,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:10:46,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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 78 [2021-11-02 23:10:46,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:46,789 INFO L225 Difference]: With dead ends: 52212 [2021-11-02 23:10:46,790 INFO L226 Difference]: Without dead ends: 52206 [2021-11-02 23:10:46,803 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:10:46,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52206 states. [2021-11-02 23:10:48,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52206 to 52206. [2021-11-02 23:10:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52206 states, 52148 states have (on average 1.2928012579581192) internal successors, (67417), 52205 states have internal predecessors, (67417), 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) [2021-11-02 23:10:48,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52206 states to 52206 states and 67417 transitions. [2021-11-02 23:10:48,405 INFO L78 Accepts]: Start accepts. Automaton has 52206 states and 67417 transitions. Word has length 78 [2021-11-02 23:10:48,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:48,405 INFO L470 AbstractCegarLoop]: Abstraction has 52206 states and 67417 transitions. [2021-11-02 23:10:48,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 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) [2021-11-02 23:10:48,405 INFO L276 IsEmpty]: Start isEmpty. Operand 52206 states and 67417 transitions. [2021-11-02 23:10:48,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-02 23:10:48,406 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:48,407 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-02 23:10:48,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 23:10:48,407 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:48,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:48,408 INFO L85 PathProgramCache]: Analyzing trace with hash 83393220, now seen corresponding path program 1 times [2021-11-02 23:10:48,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:48,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496557188] [2021-11-02 23:10:48,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:48,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-02 23:10:48,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:48,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496557188] [2021-11-02 23:10:48,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496557188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:48,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:48,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:48,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290357571] [2021-11-02 23:10:48,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:10:48,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:48,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:10:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:10:48,834 INFO L87 Difference]: Start difference. First operand 52206 states and 67417 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-02 23:10:50,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:50,986 INFO L93 Difference]: Finished difference Result 52206 states and 67417 transitions. [2021-11-02 23:10:50,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:10:50,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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 [2021-11-02 23:10:50,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:51,093 INFO L225 Difference]: With dead ends: 52206 [2021-11-02 23:10:51,093 INFO L226 Difference]: Without dead ends: 52200 [2021-11-02 23:10:51,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:10:51,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52200 states. [2021-11-02 23:10:52,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52200 to 52200. [2021-11-02 23:10:52,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52200 states, 52145 states have (on average 1.2927605714833637) internal successors, (67411), 52199 states have internal predecessors, (67411), 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) [2021-11-02 23:10:52,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52200 states to 52200 states and 67411 transitions. [2021-11-02 23:10:52,551 INFO L78 Accepts]: Start accepts. Automaton has 52200 states and 67411 transitions. Word has length 80 [2021-11-02 23:10:52,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:52,552 INFO L470 AbstractCegarLoop]: Abstraction has 52200 states and 67411 transitions. [2021-11-02 23:10:52,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-02 23:10:52,552 INFO L276 IsEmpty]: Start isEmpty. Operand 52200 states and 67411 transitions. [2021-11-02 23:10:52,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-02 23:10:52,554 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:52,554 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-02 23:10:52,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 23:10:52,555 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:52,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:52,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1463344409, now seen corresponding path program 1 times [2021-11-02 23:10:52,555 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:52,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145360427] [2021-11-02 23:10:52,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:52,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-02 23:10:53,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:53,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145360427] [2021-11-02 23:10:53,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145360427] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:53,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:53,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:53,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681679611] [2021-11-02 23:10:53,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:10:53,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:53,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:10:53,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:10:53,024 INFO L87 Difference]: Start difference. First operand 52200 states and 67411 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:54,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:54,951 INFO L93 Difference]: Finished difference Result 52200 states and 67411 transitions. [2021-11-02 23:10:54,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:10:54,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-02 23:10:54,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:55,028 INFO L225 Difference]: With dead ends: 52200 [2021-11-02 23:10:55,028 INFO L226 Difference]: Without dead ends: 52194 [2021-11-02 23:10:55,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:10:55,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52194 states. [2021-11-02 23:10:56,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52194 to 52194. [2021-11-02 23:10:56,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52194 states, 52142 states have (on average 1.2927198803267999) internal successors, (67405), 52193 states have internal predecessors, (67405), 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) [2021-11-02 23:10:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52194 states to 52194 states and 67405 transitions. [2021-11-02 23:10:56,633 INFO L78 Accepts]: Start accepts. Automaton has 52194 states and 67405 transitions. Word has length 82 [2021-11-02 23:10:56,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:56,634 INFO L470 AbstractCegarLoop]: Abstraction has 52194 states and 67405 transitions. [2021-11-02 23:10:56,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:56,634 INFO L276 IsEmpty]: Start isEmpty. Operand 52194 states and 67405 transitions. [2021-11-02 23:10:56,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-02 23:10:56,636 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:56,636 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-02 23:10:56,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-02 23:10:56,636 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:10:56,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:56,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1819521142, now seen corresponding path program 1 times [2021-11-02 23:10:56,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:56,637 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558393164] [2021-11-02 23:10:56,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:56,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-02 23:10:57,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:57,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558393164] [2021-11-02 23:10:57,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558393164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:10:57,046 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:10:57,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:10:57,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998692401] [2021-11-02 23:10:57,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:10:57,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:57,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:10:57,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:10:57,047 INFO L87 Difference]: Start difference. First operand 52194 states and 67405 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:58,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:58,824 INFO L93 Difference]: Finished difference Result 52194 states and 67405 transitions. [2021-11-02 23:10:58,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:10:58,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-02 23:10:58,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:58,900 INFO L225 Difference]: With dead ends: 52194 [2021-11-02 23:10:58,900 INFO L226 Difference]: Without dead ends: 52188 [2021-11-02 23:10:58,912 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:10:58,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52188 states. [2021-11-02 23:11:00,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52188 to 52188. [2021-11-02 23:11:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52188 states, 52139 states have (on average 1.2926791844876195) internal successors, (67399), 52187 states have internal predecessors, (67399), 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) [2021-11-02 23:11:00,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52188 states to 52188 states and 67399 transitions. [2021-11-02 23:11:00,760 INFO L78 Accepts]: Start accepts. Automaton has 52188 states and 67399 transitions. Word has length 84 [2021-11-02 23:11:00,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:00,760 INFO L470 AbstractCegarLoop]: Abstraction has 52188 states and 67399 transitions. [2021-11-02 23:11:00,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:00,761 INFO L276 IsEmpty]: Start isEmpty. Operand 52188 states and 67399 transitions. [2021-11-02 23:11:00,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-02 23:11:00,762 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:00,762 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-02 23:11:00,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-02 23:11:00,763 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:11:00,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:00,763 INFO L85 PathProgramCache]: Analyzing trace with hash -507977555, now seen corresponding path program 1 times [2021-11-02 23:11:00,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:00,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634477804] [2021-11-02 23:11:00,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:00,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-02 23:11:01,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:01,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634477804] [2021-11-02 23:11:01,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634477804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:01,154 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:01,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:11:01,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596867601] [2021-11-02 23:11:01,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:11:01,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:01,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:11:01,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:11:01,155 INFO L87 Difference]: Start difference. First operand 52188 states and 67399 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-02 23:11:03,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:03,117 INFO L93 Difference]: Finished difference Result 52188 states and 67399 transitions. [2021-11-02 23:11:03,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:11:03,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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 [2021-11-02 23:11:03,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:03,196 INFO L225 Difference]: With dead ends: 52188 [2021-11-02 23:11:03,197 INFO L226 Difference]: Without dead ends: 52182 [2021-11-02 23:11:03,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:11:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52182 states. [2021-11-02 23:11:04,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52182 to 52182. [2021-11-02 23:11:04,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52182 states, 52136 states have (on average 1.2926384839650147) internal successors, (67393), 52181 states have internal predecessors, (67393), 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) [2021-11-02 23:11:04,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52182 states to 52182 states and 67393 transitions. [2021-11-02 23:11:04,948 INFO L78 Accepts]: Start accepts. Automaton has 52182 states and 67393 transitions. Word has length 86 [2021-11-02 23:11:04,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:04,948 INFO L470 AbstractCegarLoop]: Abstraction has 52182 states and 67393 transitions. [2021-11-02 23:11:04,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 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) [2021-11-02 23:11:04,949 INFO L276 IsEmpty]: Start isEmpty. Operand 52182 states and 67393 transitions. [2021-11-02 23:11:04,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-02 23:11:04,951 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:04,951 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-02 23:11:04,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-02 23:11:04,952 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:11:04,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:04,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1459992144, now seen corresponding path program 1 times [2021-11-02 23:11:04,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:04,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527678402] [2021-11-02 23:11:04,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:04,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-02 23:11:05,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:05,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527678402] [2021-11-02 23:11:05,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527678402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:05,312 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:05,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:11:05,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8873334] [2021-11-02 23:11:05,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:11:05,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:05,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:11:05,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:11:05,313 INFO L87 Difference]: Start difference. First operand 52182 states and 67393 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:07,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:11:07,407 INFO L93 Difference]: Finished difference Result 52182 states and 67393 transitions. [2021-11-02 23:11:07,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 23:11:07,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-02 23:11:07,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:11:07,490 INFO L225 Difference]: With dead ends: 52182 [2021-11-02 23:11:07,490 INFO L226 Difference]: Without dead ends: 52176 [2021-11-02 23:11:07,502 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 23:11:07,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52176 states. [2021-11-02 23:11:09,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52176 to 52176. [2021-11-02 23:11:09,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52176 states, 52133 states have (on average 1.2925977787581762) internal successors, (67387), 52175 states have internal predecessors, (67387), 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) [2021-11-02 23:11:09,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52176 states to 52176 states and 67387 transitions. [2021-11-02 23:11:09,264 INFO L78 Accepts]: Start accepts. Automaton has 52176 states and 67387 transitions. Word has length 88 [2021-11-02 23:11:09,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:11:09,264 INFO L470 AbstractCegarLoop]: Abstraction has 52176 states and 67387 transitions. [2021-11-02 23:11:09,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:11:09,265 INFO L276 IsEmpty]: Start isEmpty. Operand 52176 states and 67387 transitions. [2021-11-02 23:11:09,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-02 23:11:09,267 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:11:09,267 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-02 23:11:09,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-02 23:11:09,268 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-02 23:11:09,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:09,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1401704333, now seen corresponding path program 1 times [2021-11-02 23:11:09,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:09,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317962938] [2021-11-02 23:11:09,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:09,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-02 23:11:09,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:11:09,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317962938] [2021-11-02 23:11:09,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317962938] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:11:09,661 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:11:09,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:11:09,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442518621] [2021-11-02 23:11:09,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 23:11:09,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:11:09,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 23:11:09,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 23:11:09,663 INFO L87 Difference]: Start difference. First operand 52176 states and 67387 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 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)