./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-ethernet-atheros-atl1e-atl1e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.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 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:43:06,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:43:06,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:43:06,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:43:06,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:43:06,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:43:06,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:43:06,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:43:06,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:43:06,608 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:43:06,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:43:06,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:43:06,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:43:06,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:43:06,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:43:06,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:43:06,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:43:06,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:43:06,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:43:06,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:43:06,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:43:06,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:43:06,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:43:06,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:43:06,625 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:43:06,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:43:06,630 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:43:06,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:43:06,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:43:06,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:43:06,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:43:06,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:43:06,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:43:06,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:43:06,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:43:06,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:43:06,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:43:06,643 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:43:06,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:43:06,644 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:43:06,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:43:06,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:43:06,662 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:43:06,663 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:43:06,663 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:43:06,663 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:43:06,665 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:43:06,665 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:43:06,665 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:43:06,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:43:06,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:43:06,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:43:06,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:43:06,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:43:06,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:43:06,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:43:06,667 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:43:06,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:43:06,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:43:06,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:43:06,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:43:06,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:43:06,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:43:06,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:43:06,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:43:06,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:43:06,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:43:06,668 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:43:06,669 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:43:06,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:43:06,669 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:43:06,669 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 [2021-11-05 20:43:06,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:43:06,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:43:06,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:43:06,926 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:43:06,927 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:43:06,928 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-05 20:43:06,974 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bf804a36/5e2f9037603f457faa3e64608e7ead1a/FLAGfc5dce78d [2021-11-05 20:43:07,676 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:43:07,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-05 20:43:07,715 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bf804a36/5e2f9037603f457faa3e64608e7ead1a/FLAGfc5dce78d [2021-11-05 20:43:07,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bf804a36/5e2f9037603f457faa3e64608e7ead1a [2021-11-05 20:43:07,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:43:07,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:43:07,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:43:07,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:43:07,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:43:07,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:43:07" (1/1) ... [2021-11-05 20:43:07,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72333ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:07, skipping insertion in model container [2021-11-05 20:43:07,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:43:07" (1/1) ... [2021-11-05 20:43:07,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:43:08,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:43:10,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2021-11-05 20:43:10,869 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2021-11-05 20:43:10,870 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2021-11-05 20:43:10,870 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2021-11-05 20:43:10,886 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:43:10,922 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:43:11,293 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463113,463126] [2021-11-05 20:43:11,294 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2021-11-05 20:43:11,295 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2021-11-05 20:43:11,295 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2021-11-05 20:43:11,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:43:11,592 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:43:11,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11 WrapperNode [2021-11-05 20:43:11,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:43:11,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:43:11,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:43:11,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:43:11,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:11,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:12,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:43:12,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:43:12,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:43:12,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:43:12,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:12,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:12,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:12,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:13,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:13,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:13,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:13,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:43:13,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:43:13,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:43:13,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:43:13,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (1/1) ... [2021-11-05 20:43:13,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:43:13,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:43:13,570 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) [2021-11-05 20:43:13,579 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 [2021-11-05 20:43:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:43:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:43:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:43:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:43:13,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:43:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:43:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 20:43:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:43:13,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:43:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:43:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:43:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:43:13,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:43:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:43:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:43:13,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:43:38,791 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 20:43:38,791 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 20:43:38,792 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:43:38,792 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:43:38,793 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:43:38,793 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:43:38,821 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:43:38,821 INFO L299 CfgBuilder]: Removed 8190 assume(true) statements. [2021-11-05 20:43:38,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:43:38 BoogieIcfgContainer [2021-11-05 20:43:38,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:43:38,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:43:38,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:43:38,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:43:38,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:43:07" (1/3) ... [2021-11-05 20:43:38,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec13d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:43:38, skipping insertion in model container [2021-11-05 20:43:38,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:43:11" (2/3) ... [2021-11-05 20:43:38,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ec13d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:43:38, skipping insertion in model container [2021-11-05 20:43:38,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:43:38" (3/3) ... [2021-11-05 20:43:38,832 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-05 20:43:38,834 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:43:38,835 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-11-05 20:43:38,879 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:43:38,883 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 [2021-11-05 20:43:38,883 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-11-05 20:43:38,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 7809 states, 7745 states have (on average 1.3404777275661717) internal successors, (10382), 7808 states have internal predecessors, (10382), 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) [2021-11-05 20:43:38,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-05 20:43:38,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:43:38,960 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:43:38,961 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 20:43:38,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:43:38,964 INFO L85 PathProgramCache]: Analyzing trace with hash 1237294292, now seen corresponding path program 1 times [2021-11-05 20:43:38,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:43:38,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179349563] [2021-11-05 20:43:38,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:43:38,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:43:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:43:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:43:39,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:43:39,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179349563] [2021-11-05 20:43:39,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179349563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:43:39,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:43:39,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:43:39,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863590794] [2021-11-05 20:43:39,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:43:39,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:43:39,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:43:39,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:43:39,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:43:39,735 INFO L87 Difference]: Start difference. First operand has 7809 states, 7745 states have (on average 1.3404777275661717) internal successors, (10382), 7808 states have internal predecessors, (10382), 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 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-05 20:43:41,799 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:43:42,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:43:42,362 INFO L93 Difference]: Finished difference Result 20769 states and 27598 transitions. [2021-11-05 20:43:42,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:43:42,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2021-11-05 20:43:42,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:43:42,414 INFO L225 Difference]: With dead ends: 20769 [2021-11-05 20:43:42,415 INFO L226 Difference]: Without dead ends: 12847 [2021-11-05 20:43:42,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.35ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:43:42,462 INFO L933 BasicCegarLoop]: 10228 mSDtfsCounter, 9976 mSDsluCounter, 7151 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2155.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9976 SdHoareTripleChecker+Valid, 17379 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.72ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2308.68ms IncrementalHoareTripleChecker+Time [2021-11-05 20:43:42,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9976 Valid, 17379 Invalid, 61 Unknown, 0 Unchecked, 30.72ms Time], IncrementalHoareTripleChecker [21 Valid, 39 Invalid, 1 Unknown, 0 Unchecked, 2308.68ms Time] [2021-11-05 20:43:42,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12847 states. [2021-11-05 20:43:42,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12847 to 12287. [2021-11-05 20:43:42,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12287 states, 12223 states have (on average 1.314161826065614) internal successors, (16063), 12286 states have internal predecessors, (16063), 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) [2021-11-05 20:43:42,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12287 states to 12287 states and 16063 transitions. [2021-11-05 20:43:42,785 INFO L78 Accepts]: Start accepts. Automaton has 12287 states and 16063 transitions. Word has length 59 [2021-11-05 20:43:42,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:43:42,786 INFO L470 AbstractCegarLoop]: Abstraction has 12287 states and 16063 transitions. [2021-11-05 20:43:42,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2021-11-05 20:43:42,788 INFO L276 IsEmpty]: Start isEmpty. Operand 12287 states and 16063 transitions. [2021-11-05 20:43:42,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-05 20:43:42,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:43:42,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:43:42,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:43:42,794 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 20:43:42,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:43:42,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1476927092, now seen corresponding path program 1 times [2021-11-05 20:43:42,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:43:42,796 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052661514] [2021-11-05 20:43:42,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:43:42,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:43:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:43:43,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:43:43,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:43:43,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052661514] [2021-11-05 20:43:43,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052661514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:43:43,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:43:43,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:43:43,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087735170] [2021-11-05 20:43:43,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:43:43,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:43:43,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:43:43,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:43:43,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:43:43,017 INFO L87 Difference]: Start difference. First operand 12287 states and 16063 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-05 20:43:45,061 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:43:45,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:43:45,648 INFO L93 Difference]: Finished difference Result 36351 states and 47648 transitions. [2021-11-05 20:43:45,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:43:45,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2021-11-05 20:43:45,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:43:45,729 INFO L225 Difference]: With dead ends: 36351 [2021-11-05 20:43:45,730 INFO L226 Difference]: Without dead ends: 24180 [2021-11-05 20:43:45,755 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.10ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:43:45,756 INFO L933 BasicCegarLoop]: 9952 mSDtfsCounter, 9601 mSDsluCounter, 9915 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2097.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9601 SdHoareTripleChecker+Valid, 19867 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.12ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2222.63ms IncrementalHoareTripleChecker+Time [2021-11-05 20:43:45,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9601 Valid, 19867 Invalid, 34 Unknown, 0 Unchecked, 20.12ms Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 1 Unknown, 0 Unchecked, 2222.63ms Time] [2021-11-05 20:43:45,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24180 states. [2021-11-05 20:43:46,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24180 to 24148. [2021-11-05 20:43:46,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24148 states, 24084 states have (on average 1.31568676299618) internal successors, (31687), 24147 states have internal predecessors, (31687), 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) [2021-11-05 20:43:46,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24148 states to 24148 states and 31687 transitions. [2021-11-05 20:43:46,467 INFO L78 Accepts]: Start accepts. Automaton has 24148 states and 31687 transitions. Word has length 60 [2021-11-05 20:43:46,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:43:46,467 INFO L470 AbstractCegarLoop]: Abstraction has 24148 states and 31687 transitions. [2021-11-05 20:43:46,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2021-11-05 20:43:46,468 INFO L276 IsEmpty]: Start isEmpty. Operand 24148 states and 31687 transitions. [2021-11-05 20:43:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-05 20:43:46,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:43:46,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:43:46,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:43:46,469 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 20:43:46,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:43:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash -2090903688, now seen corresponding path program 1 times [2021-11-05 20:43:46,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:43:46,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056357384] [2021-11-05 20:43:46,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:43:46,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:43:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:43:46,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:43:46,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:43:46,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056357384] [2021-11-05 20:43:46,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056357384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:43:46,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:43:46,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:43:46,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409220029] [2021-11-05 20:43:46,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:43:46,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:43:46,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:43:46,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:43:46,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:43:46,648 INFO L87 Difference]: Start difference. First operand 24148 states and 31687 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-05 20:43:48,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:43:49,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:43:49,599 INFO L93 Difference]: Finished difference Result 70860 states and 93057 transitions. [2021-11-05 20:43:49,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:43:49,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2021-11-05 20:43:49,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:43:49,706 INFO L225 Difference]: With dead ends: 70860 [2021-11-05 20:43:49,706 INFO L226 Difference]: Without dead ends: 46828 [2021-11-05 20:43:49,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:43:49,759 INFO L933 BasicCegarLoop]: 9941 mSDtfsCounter, 9555 mSDsluCounter, 9555 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2152.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9555 SdHoareTripleChecker+Valid, 19496 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.24ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2348.80ms IncrementalHoareTripleChecker+Time [2021-11-05 20:43:49,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9555 Valid, 19496 Invalid, 66 Unknown, 0 Unchecked, 16.24ms Time], IncrementalHoareTripleChecker [18 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2348.80ms Time] [2021-11-05 20:43:49,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46828 states. [2021-11-05 20:43:50,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46828 to 45984. [2021-11-05 20:43:50,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45984 states, 45920 states have (on average 1.3180966898954705) internal successors, (60527), 45983 states have internal predecessors, (60527), 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) [2021-11-05 20:43:50,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45984 states to 45984 states and 60527 transitions. [2021-11-05 20:43:50,933 INFO L78 Accepts]: Start accepts. Automaton has 45984 states and 60527 transitions. Word has length 62 [2021-11-05 20:43:50,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:43:50,933 INFO L470 AbstractCegarLoop]: Abstraction has 45984 states and 60527 transitions. [2021-11-05 20:43:50,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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) [2021-11-05 20:43:50,934 INFO L276 IsEmpty]: Start isEmpty. Operand 45984 states and 60527 transitions. [2021-11-05 20:43:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-05 20:43:50,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:43:50,936 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-05 20:43:50,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:43:50,936 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 20:43:50,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:43:50,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1136047947, now seen corresponding path program 1 times [2021-11-05 20:43:50,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:43:50,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509299224] [2021-11-05 20:43:50,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:43:50,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:43:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:43:51,106 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:43:51,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:43:51,107 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509299224] [2021-11-05 20:43:51,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509299224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:43:51,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:43:51,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:43:51,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229029765] [2021-11-05 20:43:51,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:43:51,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:43:51,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:43:51,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:43:51,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:43:51,109 INFO L87 Difference]: Start difference. First operand 45984 states and 60527 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-05 20:43:53,156 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:43:54,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:43:54,359 INFO L93 Difference]: Finished difference Result 105905 states and 139344 transitions. [2021-11-05 20:43:54,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:43:54,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2021-11-05 20:43:54,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:43:54,472 INFO L225 Difference]: With dead ends: 105905 [2021-11-05 20:43:54,473 INFO L226 Difference]: Without dead ends: 60037 [2021-11-05 20:43:54,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.31ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:43:54,539 INFO L933 BasicCegarLoop]: 10017 mSDtfsCounter, 9809 mSDsluCounter, 9945 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2076.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9809 SdHoareTripleChecker+Valid, 19962 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.69ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2236.14ms IncrementalHoareTripleChecker+Time [2021-11-05 20:43:54,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9809 Valid, 19962 Invalid, 21 Unknown, 0 Unchecked, 15.69ms Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2236.14ms Time] [2021-11-05 20:43:54,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60037 states. [2021-11-05 20:43:55,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60037 to 59775. [2021-11-05 20:43:55,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59775 states, 59711 states have (on average 1.3177806434325334) internal successors, (78686), 59774 states have internal predecessors, (78686), 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) [2021-11-05 20:43:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59775 states to 59775 states and 78686 transitions. [2021-11-05 20:43:55,878 INFO L78 Accepts]: Start accepts. Automaton has 59775 states and 78686 transitions. Word has length 74 [2021-11-05 20:43:55,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:43:55,878 INFO L470 AbstractCegarLoop]: Abstraction has 59775 states and 78686 transitions. [2021-11-05 20:43:55,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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) [2021-11-05 20:43:55,878 INFO L276 IsEmpty]: Start isEmpty. Operand 59775 states and 78686 transitions. [2021-11-05 20:43:55,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 20:43:55,880 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:43:55,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:43:55,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:43:55,881 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 20:43:55,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:43:55,881 INFO L85 PathProgramCache]: Analyzing trace with hash -471736201, now seen corresponding path program 1 times [2021-11-05 20:43:55,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:43:55,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962574893] [2021-11-05 20:43:55,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:43:55,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:43:55,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:43:56,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:43:56,030 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:43:56,030 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962574893] [2021-11-05 20:43:56,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962574893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:43:56,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:43:56,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:43:56,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556029785] [2021-11-05 20:43:56,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:43:56,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:43:56,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:43:56,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:43:56,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:43:56,035 INFO L87 Difference]: Start difference. First operand 59775 states and 78686 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) [2021-11-05 20:43:58,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:43:59,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:43:59,930 INFO L93 Difference]: Finished difference Result 159574 states and 210303 transitions. [2021-11-05 20:43:59,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:43:59,931 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 [2021-11-05 20:43:59,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:44:00,144 INFO L225 Difference]: With dead ends: 159574 [2021-11-05 20:44:00,144 INFO L226 Difference]: Without dead ends: 99915 [2021-11-05 20:44:00,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.90ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:44:00,223 INFO L933 BasicCegarLoop]: 9951 mSDtfsCounter, 6585 mSDsluCounter, 9747 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2199.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6585 SdHoareTripleChecker+Valid, 19698 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.35ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2390.16ms IncrementalHoareTripleChecker+Time [2021-11-05 20:44:00,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6585 Valid, 19698 Invalid, 103 Unknown, 0 Unchecked, 14.35ms Time], IncrementalHoareTripleChecker [7 Valid, 95 Invalid, 1 Unknown, 0 Unchecked, 2390.16ms Time] [2021-11-05 20:44:00,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99915 states. [2021-11-05 20:44:02,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99915 to 98979. [2021-11-05 20:44:02,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98979 states, 98915 states have (on average 1.3201334479098215) internal successors, (130581), 98978 states have internal predecessors, (130581), 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) [2021-11-05 20:44:02,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98979 states to 98979 states and 130581 transitions. [2021-11-05 20:44:02,549 INFO L78 Accepts]: Start accepts. Automaton has 98979 states and 130581 transitions. Word has length 78 [2021-11-05 20:44:02,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:44:02,549 INFO L470 AbstractCegarLoop]: Abstraction has 98979 states and 130581 transitions. [2021-11-05 20:44:02,549 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) [2021-11-05 20:44:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand 98979 states and 130581 transitions. [2021-11-05 20:44:02,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-05 20:44:02,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:44:02,552 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:44:02,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:44:02,552 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 20:44:02,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:44:02,553 INFO L85 PathProgramCache]: Analyzing trace with hash 431453269, now seen corresponding path program 1 times [2021-11-05 20:44:02,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:44:02,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153239239] [2021-11-05 20:44:02,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:44:02,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:44:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:44:02,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:44:02,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:44:02,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153239239] [2021-11-05 20:44:02,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153239239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:44:02,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:44:02,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:44:02,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425118038] [2021-11-05 20:44:02,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:44:02,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:44:02,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:44:02,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:44:02,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:44:02,851 INFO L87 Difference]: Start difference. First operand 98979 states and 130581 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-05 20:44:04,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:44:07,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:44:07,546 INFO L93 Difference]: Finished difference Result 251693 states and 332280 transitions. [2021-11-05 20:44:07,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:44:07,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-05 20:44:07,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:44:08,012 INFO L225 Difference]: With dead ends: 251693 [2021-11-05 20:44:08,012 INFO L226 Difference]: Without dead ends: 174969 [2021-11-05 20:44:08,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:44:08,118 INFO L933 BasicCegarLoop]: 19533 mSDtfsCounter, 9641 mSDsluCounter, 9873 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2105.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9641 SdHoareTripleChecker+Valid, 29406 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.93ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2273.78ms IncrementalHoareTripleChecker+Time [2021-11-05 20:44:08,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9641 Valid, 29406 Invalid, 32 Unknown, 0 Unchecked, 18.93ms Time], IncrementalHoareTripleChecker [6 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2273.78ms Time] [2021-11-05 20:44:08,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174969 states. [2021-11-05 20:44:11,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174969 to 174832. [2021-11-05 20:44:11,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174832 states, 174768 states have (on average 1.320699441545363) internal successors, (230816), 174831 states have internal predecessors, (230816), 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) [2021-11-05 20:44:12,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174832 states to 174832 states and 230816 transitions. [2021-11-05 20:44:12,060 INFO L78 Accepts]: Start accepts. Automaton has 174832 states and 230816 transitions. Word has length 89 [2021-11-05 20:44:12,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:44:12,060 INFO L470 AbstractCegarLoop]: Abstraction has 174832 states and 230816 transitions. [2021-11-05 20:44:12,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-05 20:44:12,061 INFO L276 IsEmpty]: Start isEmpty. Operand 174832 states and 230816 transitions. [2021-11-05 20:44:12,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-05 20:44:12,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:44:12,063 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:44:12,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:44:12,064 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 61 more)] === [2021-11-05 20:44:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:44:12,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1711316947, now seen corresponding path program 1 times [2021-11-05 20:44:12,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:44:12,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019365881] [2021-11-05 20:44:12,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:44:12,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:44:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:44:12,198 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:44:12,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:44:12,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019365881] [2021-11-05 20:44:12,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019365881] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:44:12,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:44:12,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:44:12,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166541438] [2021-11-05 20:44:12,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:44:12,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:44:12,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:44:12,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:44:12,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:44:12,201 INFO L87 Difference]: Start difference. First operand 174832 states and 230816 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-05 20:44:14,249 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:44:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:44:18,845 INFO L93 Difference]: Finished difference Result 403383 states and 532718 transitions. [2021-11-05 20:44:18,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:44:18,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 89 [2021-11-05 20:44:18,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:44:19,591 INFO L225 Difference]: With dead ends: 403383 [2021-11-05 20:44:19,592 INFO L226 Difference]: Without dead ends: 250806 [2021-11-05 20:44:19,784 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:44:19,785 INFO L933 BasicCegarLoop]: 19533 mSDtfsCounter, 9579 mSDsluCounter, 9934 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2099.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9579 SdHoareTripleChecker+Valid, 29467 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.23ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2297.93ms IncrementalHoareTripleChecker+Time [2021-11-05 20:44:19,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9579 Valid, 29467 Invalid, 30 Unknown, 0 Unchecked, 20.23ms Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 1 Unknown, 0 Unchecked, 2297.93ms Time] [2021-11-05 20:44:20,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250806 states.