./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 34f21538f85eb9cdaa60d9a1e57757d7a04f90c8b459e1dcc8d118be409846cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:50:56,681 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:50:56,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:50:56,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:50:56,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:50:56,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:50:56,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:50:56,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:50:56,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:50:56,730 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:50:56,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:50:56,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:50:56,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:50:56,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:50:56,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:50:56,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:50:56,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:50:56,741 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:50:56,743 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:50:56,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:50:56,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:50:56,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:50:56,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:50:56,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:50:56,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:50:56,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:50:56,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:50:56,757 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:50:56,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:50:56,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:50:56,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:50:56,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:50:56,760 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:50:56,761 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:50:56,762 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:50:56,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:50:56,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:50:56,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:50:56,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:50:56,764 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:50:56,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:50:56,766 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:50:56,789 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:50:56,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:50:56,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:50:56,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:50:56,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:50:56,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:50:56,802 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:50:56,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:50:56,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:50:56,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:50:56,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:50:56,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:50:56,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:50:56,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:50:56,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:50:56,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:50:56,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:50:56,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:50:56,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:50:56,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:50:56,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:50:56,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:50:56,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:50:56,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:50:56,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:50:56,805 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:50:56,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:50:56,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:50:56,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:50:56,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34f21538f85eb9cdaa60d9a1e57757d7a04f90c8b459e1dcc8d118be409846cb [2021-11-06 18:50:56,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:50:57,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:50:57,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:50:57,009 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:50:57,010 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:50:57,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-06 18:50:57,076 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb7969bce/f144849cad5742a1aca3a99d977db77d/FLAG7e3a0bdc1 [2021-11-06 18:50:57,674 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:50:57,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-06 18:50:57,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb7969bce/f144849cad5742a1aca3a99d977db77d/FLAG7e3a0bdc1 [2021-11-06 18:50:58,088 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb7969bce/f144849cad5742a1aca3a99d977db77d [2021-11-06 18:50:58,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:50:58,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:50:58,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:50:58,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:50:58,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:50:58,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:50:58" (1/1) ... [2021-11-06 18:50:58,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127040ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:50:58, skipping insertion in model container [2021-11-06 18:50:58,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:50:58" (1/1) ... [2021-11-06 18:50:58,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:50:58,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:50:59,938 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[325823,325836] [2021-11-06 18:50:59,940 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[325992,326005] [2021-11-06 18:50:59,940 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[326159,326172] [2021-11-06 18:50:59,941 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[326327,326340] [2021-11-06 18:50:59,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:50:59,978 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:51:00,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[325823,325836] [2021-11-06 18:51:00,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[325992,326005] [2021-11-06 18:51:00,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[326159,326172] [2021-11-06 18:51:00,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i[326327,326340] [2021-11-06 18:51:00,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:51:00,385 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:51:00,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00 WrapperNode [2021-11-06 18:51:00,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:51:00,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:51:00,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:51:00,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:51:00,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:00,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:03,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:51:03,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:51:03,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:51:03,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:51:03,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:03,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:03,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:03,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:05,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:05,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:06,000 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:06,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:51:06,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:51:06,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:51:06,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:51:06,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (1/1) ... [2021-11-06 18:51:06,484 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:51:06,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:51:06,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 18:51:06,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 18:51:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:51:06,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:51:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:51:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:51:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:51:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:51:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:51:06,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:51:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:51:06,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:51:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:51:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:51:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:51:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:51:06,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:52:13,953 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:52:13,953 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 18:52:13,954 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:52:13,955 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:52:13,956 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:52:13,958 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:52:13,959 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:52:14,025 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:52:14,026 INFO L299 CfgBuilder]: Removed 20891 assume(true) statements. [2021-11-06 18:52:14,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:52:14 BoogieIcfgContainer [2021-11-06 18:52:14,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:52:14,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:52:14,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:52:14,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:52:14,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:50:58" (1/3) ... [2021-11-06 18:52:14,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727d1212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:52:14, skipping insertion in model container [2021-11-06 18:52:14,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:51:00" (2/3) ... [2021-11-06 18:52:14,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727d1212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:52:14, skipping insertion in model container [2021-11-06 18:52:14,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:52:14" (3/3) ... [2021-11-06 18:52:14,050 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-radio-wl128x-fm_drv.cil.i [2021-11-06 18:52:14,056 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:52:14,056 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 390 error locations. [2021-11-06 18:52:14,137 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:52:14,141 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 [2021-11-06 18:52:14,141 INFO L340 AbstractCegarLoop]: Starting to check reachability of 390 error locations. [2021-11-06 18:52:14,320 INFO L276 IsEmpty]: Start isEmpty. Operand has 21626 states, 21236 states have (on average 1.3931531361838387) internal successors, (29585), 21625 states have internal predecessors, (29585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:14,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 18:52:14,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:52:14,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:52:14,338 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-06 18:52:14,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:52:14,342 INFO L85 PathProgramCache]: Analyzing trace with hash -2049477516, now seen corresponding path program 1 times [2021-11-06 18:52:14,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:52:14,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526975550] [2021-11-06 18:52:14,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:52:14,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:52:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:52:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:52:14,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:52:14,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526975550] [2021-11-06 18:52:14,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526975550] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:52:14,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:52:14,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:52:14,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729027319] [2021-11-06 18:52:14,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:52:14,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:52:14,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:52:14,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:52:14,904 INFO L87 Difference]: Start difference. First operand has 21626 states, 21236 states have (on average 1.3931531361838387) internal successors, (29585), 21625 states have internal predecessors, (29585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:18,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:52:18,222 INFO L93 Difference]: Finished difference Result 64171 states and 87854 transitions. [2021-11-06 18:52:18,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:52:18,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-06 18:52:18,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:52:18,366 INFO L225 Difference]: With dead ends: 64171 [2021-11-06 18:52:18,367 INFO L226 Difference]: Without dead ends: 39641 [2021-11-06 18:52:18,416 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 [2021-11-06 18:52:18,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39641 states. [2021-11-06 18:52:19,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39641 to 38915. [2021-11-06 18:52:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38915 states, 38525 states have (on average 1.328825438027255) internal successors, (51193), 38914 states have internal predecessors, (51193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:19,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38915 states to 38915 states and 51193 transitions. [2021-11-06 18:52:19,367 INFO L78 Accepts]: Start accepts. Automaton has 38915 states and 51193 transitions. Word has length 80 [2021-11-06 18:52:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:52:19,368 INFO L470 AbstractCegarLoop]: Abstraction has 38915 states and 51193 transitions. [2021-11-06 18:52:19,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:19,369 INFO L276 IsEmpty]: Start isEmpty. Operand 38915 states and 51193 transitions. [2021-11-06 18:52:19,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 18:52:19,372 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:52:19,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:52:19,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:52:19,373 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-06 18:52:19,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:52:19,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1456535030, now seen corresponding path program 1 times [2021-11-06 18:52:19,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:52:19,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925847205] [2021-11-06 18:52:19,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:52:19,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:52:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:52:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:52:19,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:52:19,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925847205] [2021-11-06 18:52:19,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925847205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:52:19,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:52:19,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:52:19,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389205571] [2021-11-06 18:52:19,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:52:19,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:52:19,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:52:19,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:52:19,588 INFO L87 Difference]: Start difference. First operand 38915 states and 51193 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:22,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:52:22,839 INFO L93 Difference]: Finished difference Result 96277 states and 126365 transitions. [2021-11-06 18:52:22,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:52:22,839 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-06 18:52:22,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:52:22,982 INFO L225 Difference]: With dead ends: 96277 [2021-11-06 18:52:22,983 INFO L226 Difference]: Without dead ends: 57518 [2021-11-06 18:52:23,046 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 [2021-11-06 18:52:23,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57518 states. [2021-11-06 18:52:24,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57518 to 56676. [2021-11-06 18:52:24,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56676 states, 56286 states have (on average 1.3296912198415236) internal successors, (74843), 56675 states have internal predecessors, (74843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:24,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56676 states to 56676 states and 74843 transitions. [2021-11-06 18:52:24,336 INFO L78 Accepts]: Start accepts. Automaton has 56676 states and 74843 transitions. Word has length 84 [2021-11-06 18:52:24,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:52:24,338 INFO L470 AbstractCegarLoop]: Abstraction has 56676 states and 74843 transitions. [2021-11-06 18:52:24,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand 56676 states and 74843 transitions. [2021-11-06 18:52:24,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-06 18:52:24,340 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:52:24,341 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:52:24,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:52:24,361 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-06 18:52:24,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:52:24,361 INFO L85 PathProgramCache]: Analyzing trace with hash 774548603, now seen corresponding path program 1 times [2021-11-06 18:52:24,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:52:24,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230388262] [2021-11-06 18:52:24,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:52:24,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:52:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:52:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:52:24,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:52:24,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230388262] [2021-11-06 18:52:24,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230388262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:52:24,573 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:52:24,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:52:24,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754818376] [2021-11-06 18:52:24,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:52:24,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:52:24,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:52:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:52:24,575 INFO L87 Difference]: Start difference. First operand 56676 states and 74843 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:27,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:52:27,656 INFO L93 Difference]: Finished difference Result 104725 states and 138299 transitions. [2021-11-06 18:52:27,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:52:27,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-06 18:52:27,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:52:27,756 INFO L225 Difference]: With dead ends: 104725 [2021-11-06 18:52:27,756 INFO L226 Difference]: Without dead ends: 48205 [2021-11-06 18:52:27,816 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 [2021-11-06 18:52:27,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48205 states. [2021-11-06 18:52:28,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48205 to 48205. [2021-11-06 18:52:28,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48205 states, 47867 states have (on average 1.3292038356278857) internal successors, (63625), 48204 states have internal predecessors, (63625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:28,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48205 states to 48205 states and 63625 transitions. [2021-11-06 18:52:28,751 INFO L78 Accepts]: Start accepts. Automaton has 48205 states and 63625 transitions. Word has length 86 [2021-11-06 18:52:28,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:52:28,752 INFO L470 AbstractCegarLoop]: Abstraction has 48205 states and 63625 transitions. [2021-11-06 18:52:28,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:28,752 INFO L276 IsEmpty]: Start isEmpty. Operand 48205 states and 63625 transitions. [2021-11-06 18:52:28,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-06 18:52:28,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:52:28,756 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:52:28,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:52:28,756 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr123ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-06 18:52:28,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:52:28,757 INFO L85 PathProgramCache]: Analyzing trace with hash 951472750, now seen corresponding path program 1 times [2021-11-06 18:52:28,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:52:28,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54501552] [2021-11-06 18:52:28,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:52:28,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:52:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:52:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:52:28,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:52:28,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54501552] [2021-11-06 18:52:28,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54501552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:52:28,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:52:28,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:52:28,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586121373] [2021-11-06 18:52:28,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:52:28,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:52:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:52:28,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:52:28,928 INFO L87 Difference]: Start difference. First operand 48205 states and 63625 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:32,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:52:32,041 INFO L93 Difference]: Finished difference Result 86950 states and 114511 transitions. [2021-11-06 18:52:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:52:32,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-06 18:52:32,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:52:32,103 INFO L225 Difference]: With dead ends: 86950 [2021-11-06 18:52:32,104 INFO L226 Difference]: Without dead ends: 38901 [2021-11-06 18:52:32,149 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 [2021-11-06 18:52:32,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38901 states. [2021-11-06 18:52:32,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38901 to 38667. [2021-11-06 18:52:32,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38667 states, 38329 states have (on average 1.326358631845339) internal successors, (50838), 38666 states have internal predecessors, (50838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:32,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38667 states to 38667 states and 50838 transitions. [2021-11-06 18:52:32,912 INFO L78 Accepts]: Start accepts. Automaton has 38667 states and 50838 transitions. Word has length 101 [2021-11-06 18:52:32,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:52:32,913 INFO L470 AbstractCegarLoop]: Abstraction has 38667 states and 50838 transitions. [2021-11-06 18:52:32,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 38667 states and 50838 transitions. [2021-11-06 18:52:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-06 18:52:32,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:52:32,918 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:52:32,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:52:32,919 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-06 18:52:32,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:52:32,919 INFO L85 PathProgramCache]: Analyzing trace with hash -420140612, now seen corresponding path program 1 times [2021-11-06 18:52:32,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:52:32,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495129885] [2021-11-06 18:52:32,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:52:32,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:52:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:52:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:52:33,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:52:33,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495129885] [2021-11-06 18:52:33,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495129885] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:52:33,080 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:52:33,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:52:33,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729784868] [2021-11-06 18:52:33,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:52:33,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:52:33,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:52:33,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:52:33,082 INFO L87 Difference]: Start difference. First operand 38667 states and 50838 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:36,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:52:36,395 INFO L93 Difference]: Finished difference Result 111625 states and 146933 transitions. [2021-11-06 18:52:36,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:52:36,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-06 18:52:36,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:52:36,527 INFO L225 Difference]: With dead ends: 111625 [2021-11-06 18:52:36,527 INFO L226 Difference]: Without dead ends: 74781 [2021-11-06 18:52:36,579 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 [2021-11-06 18:52:36,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74781 states. [2021-11-06 18:52:37,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74781 to 74159. [2021-11-06 18:52:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74159 states, 73821 states have (on average 1.329269449072757) internal successors, (98128), 74158 states have internal predecessors, (98128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:38,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74159 states to 74159 states and 98128 transitions. [2021-11-06 18:52:38,113 INFO L78 Accepts]: Start accepts. Automaton has 74159 states and 98128 transitions. Word has length 113 [2021-11-06 18:52:38,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:52:38,114 INFO L470 AbstractCegarLoop]: Abstraction has 74159 states and 98128 transitions. [2021-11-06 18:52:38,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:38,117 INFO L276 IsEmpty]: Start isEmpty. Operand 74159 states and 98128 transitions. [2021-11-06 18:52:38,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-06 18:52:38,119 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:52:38,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:52:38,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:52:38,119 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-06 18:52:38,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:52:38,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1237789062, now seen corresponding path program 1 times [2021-11-06 18:52:38,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:52:38,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981703244] [2021-11-06 18:52:38,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:52:38,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:52:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:52:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:52:38,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:52:38,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981703244] [2021-11-06 18:52:38,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981703244] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:52:38,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:52:38,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:52:38,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045221360] [2021-11-06 18:52:38,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:52:38,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:52:38,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:52:38,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:52:38,297 INFO L87 Difference]: Start difference. First operand 74159 states and 98128 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:42,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:52:42,470 INFO L93 Difference]: Finished difference Result 182613 states and 241521 transitions. [2021-11-06 18:52:42,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:52:42,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-06 18:52:42,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:52:42,685 INFO L225 Difference]: With dead ends: 182613 [2021-11-06 18:52:42,685 INFO L226 Difference]: Without dead ends: 110277 [2021-11-06 18:52:42,777 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 [2021-11-06 18:52:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110277 states. [2021-11-06 18:52:44,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110277 to 109622. [2021-11-06 18:52:44,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109622 states, 109284 states have (on average 1.3303777314153948) internal successors, (145389), 109621 states have internal predecessors, (145389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:44,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109622 states to 109622 states and 145389 transitions. [2021-11-06 18:52:44,978 INFO L78 Accepts]: Start accepts. Automaton has 109622 states and 145389 transitions. Word has length 113 [2021-11-06 18:52:44,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:52:44,978 INFO L470 AbstractCegarLoop]: Abstraction has 109622 states and 145389 transitions. [2021-11-06 18:52:44,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:44,978 INFO L276 IsEmpty]: Start isEmpty. Operand 109622 states and 145389 transitions. [2021-11-06 18:52:44,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-06 18:52:44,980 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:52:44,980 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:52:44,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:52:44,980 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-06 18:52:44,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:52:44,981 INFO L85 PathProgramCache]: Analyzing trace with hash 997639822, now seen corresponding path program 1 times [2021-11-06 18:52:44,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:52:44,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255493134] [2021-11-06 18:52:44,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:52:44,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:52:45,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:52:45,446 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:52:45,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:52:45,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255493134] [2021-11-06 18:52:45,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255493134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:52:45,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:52:45,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:52:45,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286695064] [2021-11-06 18:52:45,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:52:45,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:52:45,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:52:45,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:52:45,448 INFO L87 Difference]: Start difference. First operand 109622 states and 145389 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:47,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:52:47,009 INFO L93 Difference]: Finished difference Result 109622 states and 145389 transitions. [2021-11-06 18:52:47,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:52:47,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-06 18:52:47,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:52:47,224 INFO L225 Difference]: With dead ends: 109622 [2021-11-06 18:52:47,224 INFO L226 Difference]: Without dead ends: 109616 [2021-11-06 18:52:47,259 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 [2021-11-06 18:52:47,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109616 states. [2021-11-06 18:52:49,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109616 to 109616. [2021-11-06 18:52:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109616 states, 109281 states have (on average 1.3303593488346557) internal successors, (145383), 109615 states have internal predecessors, (145383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109616 states to 109616 states and 145383 transitions. [2021-11-06 18:52:49,494 INFO L78 Accepts]: Start accepts. Automaton has 109616 states and 145383 transitions. Word has length 113 [2021-11-06 18:52:49,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:52:49,494 INFO L470 AbstractCegarLoop]: Abstraction has 109616 states and 145383 transitions. [2021-11-06 18:52:49,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:52:49,495 INFO L276 IsEmpty]: Start isEmpty. Operand 109616 states and 145383 transitions. [2021-11-06 18:52:49,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-06 18:52:49,496 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:52:49,496 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:52:49,497 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:52:49,497 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 387 more)] === [2021-11-06 18:52:49,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:52:49,497 INFO L85 PathProgramCache]: Analyzing trace with hash 954318385, now seen corresponding path program 1 times [2021-11-06 18:52:49,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:52:49,497 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91819009] [2021-11-06 18:52:49,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:52:49,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:52:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:52:49,977 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:52:49,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:52:49,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91819009] [2021-11-06 18:52:49,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [91819009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:52:49,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:52:49,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:52:49,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033368659] [2021-11-06 18:52:49,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:52:49,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:52:49,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:52:49,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:52:49,980 INFO L87 Difference]: Start difference. First operand 109616 states and 145383 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)