./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 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-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-dev-173e394 [2021-11-06 18:57:24,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:57:24,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:57:24,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:57:24,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:57:24,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:57:24,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:57:24,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:57:24,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:57:24,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:57:24,092 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:57:24,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:57:24,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:57:24,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:57:24,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:57:24,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:57:24,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:57:24,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:57:24,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:57:24,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:57:24,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:57:24,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:57:24,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:57:24,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:57:24,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:57:24,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:57:24,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:57:24,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:57:24,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:57:24,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:57:24,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:57:24,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:57:24,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:57:24,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:57:24,121 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:57:24,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:57:24,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:57:24,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:57:24,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:57:24,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:57:24,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:57:24,124 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:57:24,145 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:57:24,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:57:24,146 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:57:24,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:57:24,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:57:24,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:57:24,147 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:57:24,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:57:24,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:57:24,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:57:24,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:57:24,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:57:24,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:57:24,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:57:24,148 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:57:24,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:57:24,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:57:24,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:57:24,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:57:24,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:57:24,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:57:24,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:57:24,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:57:24,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:57:24,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:57:24,150 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:57:24,150 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:57:24,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:57:24,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:57:24,151 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6757464a5622bb83d03b39d9677b81f434099fef913b81074103632b3c898f25 [2021-11-06 18:57:24,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:57:24,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:57:24,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:57:24,335 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:57:24,336 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:57:24,337 INFO L432 ainManager$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 [2021-11-06 18:57:24,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b9c8bb0e/6da9338143104636a7359901e738f098/FLAG012331fbf [2021-11-06 18:57:25,085 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:57:25,086 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 [2021-11-06 18:57:25,133 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b9c8bb0e/6da9338143104636a7359901e738f098/FLAG012331fbf [2021-11-06 18:57:25,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b9c8bb0e/6da9338143104636a7359901e738f098 [2021-11-06 18:57:25,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:57:25,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:57:25,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:57:25,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:57:25,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:57:25,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:57:25" (1/1) ... [2021-11-06 18:57:25,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bdf38c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:25, skipping insertion in model container [2021-11-06 18:57:25,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:57:25" (1/1) ... [2021-11-06 18:57:25,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:57:25,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:57:28,031 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] [2021-11-06 18:57:28,033 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] [2021-11-06 18:57:28,034 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] [2021-11-06 18:57:28,034 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] [2021-11-06 18:57:28,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:57:28,100 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:57:28,370 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] [2021-11-06 18:57:28,371 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463282,463295] [2021-11-06 18:57:28,371 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463449,463462] [2021-11-06 18:57:28,371 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[463617,463630] [2021-11-06 18:57:28,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:57:28,542 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:57:28,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28 WrapperNode [2021-11-06 18:57:28,543 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:57:28,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:57:28,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:57:28,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:57:28,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:28,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:29,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:57:29,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:57:29,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:57:29,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:57:29,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:29,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:29,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:29,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:30,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:30,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:30,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:30,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:57:30,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:57:30,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:57:30,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:57:30,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (1/1) ... [2021-11-06 18:57:30,571 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:57:30,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:57:30,588 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 18:57:30,689 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 18:57:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:57:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:57:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:57:30,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:57:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:57:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:57:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 18:57:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:57:30,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:57:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:57:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:57:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:57:30,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:57:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:57:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:57:30,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:57:59,523 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:57:59,523 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:57:59,524 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:57:59,524 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:57:59,525 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:57:59,526 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:57:59,551 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:57:59,551 INFO L299 CfgBuilder]: Removed 8190 assume(true) statements. [2021-11-06 18:57:59,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:57:59 BoogieIcfgContainer [2021-11-06 18:57:59,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:57:59,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:57:59,559 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:57:59,562 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:57:59,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:57:25" (1/3) ... [2021-11-06 18:57:59,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e0d105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:57:59, skipping insertion in model container [2021-11-06 18:57:59,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:28" (2/3) ... [2021-11-06 18:57:59,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e0d105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:57:59, skipping insertion in model container [2021-11-06 18:57:59,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:57:59" (3/3) ... [2021-11-06 18:57:59,564 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-11-06 18:57:59,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:57:59,569 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2021-11-06 18:57:59,626 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:57:59,631 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 18:57:59,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2021-11-06 18:57:59,709 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) [2021-11-06 18:57:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-06 18:57:59,717 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:57:59,717 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] [2021-11-06 18:57:59,718 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)] === [2021-11-06 18:57:59,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:57:59,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1237294292, now seen corresponding path program 1 times [2021-11-06 18:57:59,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:57:59,727 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542383415] [2021-11-06 18:57:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:57:59,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:00,263 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 18:58:00,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:00,267 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542383415] [2021-11-06 18:58:00,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542383415] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:00,268 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:00,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:00,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184183598] [2021-11-06 18:58:00,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:00,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:00,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:00,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:00,297 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) [2021-11-06 18:58:02,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:02,977 INFO L93 Difference]: Finished difference Result 20769 states and 27598 transitions. [2021-11-06 18:58:02,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:02,979 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 [2021-11-06 18:58:02,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:03,040 INFO L225 Difference]: With dead ends: 20769 [2021-11-06 18:58:03,041 INFO L226 Difference]: Without dead ends: 12847 [2021-11-06 18:58:03,064 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 18:58:03,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12847 states. [2021-11-06 18:58:03,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12847 to 12287. [2021-11-06 18:58:03,354 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) [2021-11-06 18:58:03,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12287 states to 12287 states and 16063 transitions. [2021-11-06 18:58:03,385 INFO L78 Accepts]: Start accepts. Automaton has 12287 states and 16063 transitions. Word has length 59 [2021-11-06 18:58:03,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:03,387 INFO L470 AbstractCegarLoop]: Abstraction has 12287 states and 16063 transitions. [2021-11-06 18:58:03,388 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) [2021-11-06 18:58:03,388 INFO L276 IsEmpty]: Start isEmpty. Operand 12287 states and 16063 transitions. [2021-11-06 18:58:03,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-06 18:58:03,394 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:03,394 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] [2021-11-06 18:58:03,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:58:03,395 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)] === [2021-11-06 18:58:03,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:03,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1476927092, now seen corresponding path program 1 times [2021-11-06 18:58:03,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:03,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247207165] [2021-11-06 18:58:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:03,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:03,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:03,606 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 18:58:03,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:03,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247207165] [2021-11-06 18:58:03,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247207165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:03,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:03,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:03,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948114932] [2021-11-06 18:58:03,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:03,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:03,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:03,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:03,609 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) [2021-11-06 18:58:06,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:06,442 INFO L93 Difference]: Finished difference Result 36351 states and 47648 transitions. [2021-11-06 18:58:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:06,443 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 [2021-11-06 18:58:06,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:06,510 INFO L225 Difference]: With dead ends: 36351 [2021-11-06 18:58:06,510 INFO L226 Difference]: Without dead ends: 24180 [2021-11-06 18:58:06,531 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 18:58:06,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24180 states. [2021-11-06 18:58:06,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24180 to 24148. [2021-11-06 18:58:06,948 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) [2021-11-06 18:58:06,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24148 states to 24148 states and 31687 transitions. [2021-11-06 18:58:06,991 INFO L78 Accepts]: Start accepts. Automaton has 24148 states and 31687 transitions. Word has length 60 [2021-11-06 18:58:06,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:06,991 INFO L470 AbstractCegarLoop]: Abstraction has 24148 states and 31687 transitions. [2021-11-06 18:58:06,992 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) [2021-11-06 18:58:06,992 INFO L276 IsEmpty]: Start isEmpty. Operand 24148 states and 31687 transitions. [2021-11-06 18:58:06,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-06 18:58:06,993 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:06,994 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] [2021-11-06 18:58:06,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:58:06,998 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)] === [2021-11-06 18:58:06,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:06,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2090903688, now seen corresponding path program 1 times [2021-11-06 18:58:06,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:06,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912067599] [2021-11-06 18:58:06,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:06,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:07,218 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 18:58:07,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:07,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912067599] [2021-11-06 18:58:07,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912067599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:07,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:07,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:07,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097328417] [2021-11-06 18:58:07,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:07,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:07,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:07,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:07,221 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) [2021-11-06 18:58:10,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:10,419 INFO L93 Difference]: Finished difference Result 70860 states and 93057 transitions. [2021-11-06 18:58:10,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:10,420 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 [2021-11-06 18:58:10,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:10,539 INFO L225 Difference]: With dead ends: 70860 [2021-11-06 18:58:10,540 INFO L226 Difference]: Without dead ends: 46828 [2021-11-06 18:58:10,598 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 18:58:10,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46828 states. [2021-11-06 18:58:11,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46828 to 45984. [2021-11-06 18:58:11,702 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) [2021-11-06 18:58:11,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45984 states to 45984 states and 60527 transitions. [2021-11-06 18:58:11,784 INFO L78 Accepts]: Start accepts. Automaton has 45984 states and 60527 transitions. Word has length 62 [2021-11-06 18:58:11,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:11,784 INFO L470 AbstractCegarLoop]: Abstraction has 45984 states and 60527 transitions. [2021-11-06 18:58:11,784 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) [2021-11-06 18:58:11,785 INFO L276 IsEmpty]: Start isEmpty. Operand 45984 states and 60527 transitions. [2021-11-06 18:58:11,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-06 18:58:11,787 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:11,787 INFO L513 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] [2021-11-06 18:58:11,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:58:11,787 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)] === [2021-11-06 18:58:11,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:11,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1136047947, now seen corresponding path program 1 times [2021-11-06 18:58:11,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:11,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661419944] [2021-11-06 18:58:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:11,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:58:11,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:11,951 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661419944] [2021-11-06 18:58:11,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661419944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:11,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:11,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:11,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658689330] [2021-11-06 18:58:11,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:11,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:11,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:11,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:11,953 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) [2021-11-06 18:58:15,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:15,200 INFO L93 Difference]: Finished difference Result 105905 states and 139344 transitions. [2021-11-06 18:58:15,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:15,200 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 [2021-11-06 18:58:15,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:15,333 INFO L225 Difference]: With dead ends: 105905 [2021-11-06 18:58:15,333 INFO L226 Difference]: Without dead ends: 60037 [2021-11-06 18:58:15,404 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 18:58:15,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60037 states. [2021-11-06 18:58:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60037 to 59775. [2021-11-06 18:58:16,713 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) [2021-11-06 18:58:17,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59775 states to 59775 states and 78686 transitions. [2021-11-06 18:58:17,040 INFO L78 Accepts]: Start accepts. Automaton has 59775 states and 78686 transitions. Word has length 74 [2021-11-06 18:58:17,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:17,040 INFO L470 AbstractCegarLoop]: Abstraction has 59775 states and 78686 transitions. [2021-11-06 18:58:17,040 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) [2021-11-06 18:58:17,041 INFO L276 IsEmpty]: Start isEmpty. Operand 59775 states and 78686 transitions. [2021-11-06 18:58:17,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 18:58:17,043 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:17,043 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] [2021-11-06 18:58:17,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:58:17,043 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)] === [2021-11-06 18:58:17,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash -471736201, now seen corresponding path program 1 times [2021-11-06 18:58:17,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:17,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624020070] [2021-11-06 18:58:17,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:17,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:17,238 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 18:58:17,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:17,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624020070] [2021-11-06 18:58:17,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624020070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:17,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:17,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:17,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022842797] [2021-11-06 18:58:17,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:17,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:17,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:17,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:17,241 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) [2021-11-06 18:58:21,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:21,102 INFO L93 Difference]: Finished difference Result 159574 states and 210303 transitions. [2021-11-06 18:58:21,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:21,103 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 [2021-11-06 18:58:21,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:21,320 INFO L225 Difference]: With dead ends: 159574 [2021-11-06 18:58:21,320 INFO L226 Difference]: Without dead ends: 99915 [2021-11-06 18:58:21,418 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 18:58:21,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99915 states. [2021-11-06 18:58:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99915 to 98979. [2021-11-06 18:58:23,653 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) [2021-11-06 18:58:24,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98979 states to 98979 states and 130581 transitions. [2021-11-06 18:58:24,013 INFO L78 Accepts]: Start accepts. Automaton has 98979 states and 130581 transitions. Word has length 78 [2021-11-06 18:58:24,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:24,013 INFO L470 AbstractCegarLoop]: Abstraction has 98979 states and 130581 transitions. [2021-11-06 18:58:24,014 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) [2021-11-06 18:58:24,014 INFO L276 IsEmpty]: Start isEmpty. Operand 98979 states and 130581 transitions. [2021-11-06 18:58:24,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-06 18:58:24,016 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:24,016 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] [2021-11-06 18:58:24,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:58:24,016 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)] === [2021-11-06 18:58:24,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:24,017 INFO L85 PathProgramCache]: Analyzing trace with hash 431453269, now seen corresponding path program 1 times [2021-11-06 18:58:24,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:24,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669143849] [2021-11-06 18:58:24,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:24,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:24,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:24,185 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 18:58:24,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:24,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669143849] [2021-11-06 18:58:24,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669143849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:24,186 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:24,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:24,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253835322] [2021-11-06 18:58:24,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:24,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:24,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:24,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:24,188 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) [2021-11-06 18:58:29,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:29,325 INFO L93 Difference]: Finished difference Result 251693 states and 332280 transitions. [2021-11-06 18:58:29,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:29,326 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 [2021-11-06 18:58:29,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:29,677 INFO L225 Difference]: With dead ends: 251693 [2021-11-06 18:58:29,677 INFO L226 Difference]: Without dead ends: 174969 [2021-11-06 18:58:29,792 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 18:58:30,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174969 states. [2021-11-06 18:58:33,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174969 to 174832. [2021-11-06 18:58:33,461 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) [2021-11-06 18:58:34,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174832 states to 174832 states and 230816 transitions. [2021-11-06 18:58:34,051 INFO L78 Accepts]: Start accepts. Automaton has 174832 states and 230816 transitions. Word has length 89 [2021-11-06 18:58:34,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:34,052 INFO L470 AbstractCegarLoop]: Abstraction has 174832 states and 230816 transitions. [2021-11-06 18:58:34,052 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) [2021-11-06 18:58:34,052 INFO L276 IsEmpty]: Start isEmpty. Operand 174832 states and 230816 transitions. [2021-11-06 18:58:34,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-06 18:58:34,054 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:34,054 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] [2021-11-06 18:58:34,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:58:34,054 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)] === [2021-11-06 18:58:34,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:34,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1711316947, now seen corresponding path program 1 times [2021-11-06 18:58:34,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:34,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241244498] [2021-11-06 18:58:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:34,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:34,226 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 18:58:34,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:34,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241244498] [2021-11-06 18:58:34,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241244498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:34,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:34,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:34,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677640928] [2021-11-06 18:58:34,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:34,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:34,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:34,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:34,228 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)