./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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-irda-vlsi_ir.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 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 19:06:18,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 19:06:18,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 19:06:18,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 19:06:18,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 19:06:18,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 19:06:18,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 19:06:18,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 19:06:18,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 19:06:18,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 19:06:18,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 19:06:18,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 19:06:18,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 19:06:19,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 19:06:19,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 19:06:19,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 19:06:19,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 19:06:19,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 19:06:19,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 19:06:19,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 19:06:19,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 19:06:19,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 19:06:19,023 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 19:06:19,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 19:06:19,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 19:06:19,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 19:06:19,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 19:06:19,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 19:06:19,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 19:06:19,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 19:06:19,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 19:06:19,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 19:06:19,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 19:06:19,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 19:06:19,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 19:06:19,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 19:06:19,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 19:06:19,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 19:06:19,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 19:06:19,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 19:06:19,033 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 19:06:19,035 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 19:06:19,058 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 19:06:19,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 19:06:19,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 19:06:19,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 19:06:19,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 19:06:19,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 19:06:19,061 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 19:06:19,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 19:06:19,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 19:06:19,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 19:06:19,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 19:06:19,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 19:06:19,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 19:06:19,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 19:06:19,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 19:06:19,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 19:06:19,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 19:06:19,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 19:06:19,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 19:06:19,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:06:19,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 19:06:19,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 19:06:19,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 19:06:19,065 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 19:06:19,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 19:06:19,066 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 19:06:19,066 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 19:06:19,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 19:06:19,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 19:06:19,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75b1aed7e7cb1bec6496160634d456a50c33979e7f90c34d568c6a02281e03b1 [2021-11-06 19:06:19,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 19:06:19,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 19:06:19,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 19:06:19,317 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 19:06:19,318 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 19:06:19,319 INFO L432 ainManager$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-irda-vlsi_ir.cil.i [2021-11-06 19:06:19,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7574813de/2bc8018ec7dc406db016a217d1b12927/FLAGc1ed3543e [2021-11-06 19:06:20,139 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 19:06:20,141 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-irda-vlsi_ir.cil.i [2021-11-06 19:06:20,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7574813de/2bc8018ec7dc406db016a217d1b12927/FLAGc1ed3543e [2021-11-06 19:06:20,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7574813de/2bc8018ec7dc406db016a217d1b12927 [2021-11-06 19:06:20,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 19:06:20,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 19:06:20,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 19:06:20,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 19:06:20,409 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 19:06:20,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:06:20" (1/1) ... [2021-11-06 19:06:20,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e620390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:20, skipping insertion in model container [2021-11-06 19:06:20,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:06:20" (1/1) ... [2021-11-06 19:06:20,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 19:06:20,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 19:06:23,181 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-irda-vlsi_ir.cil.i[347848,347861] [2021-11-06 19:06:23,191 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-irda-vlsi_ir.cil.i[348017,348030] [2021-11-06 19:06:23,192 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-irda-vlsi_ir.cil.i[348184,348197] [2021-11-06 19:06:23,192 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-irda-vlsi_ir.cil.i[348352,348365] [2021-11-06 19:06:23,234 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:06:23,271 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 19:06:23,604 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-irda-vlsi_ir.cil.i[347848,347861] [2021-11-06 19:06:23,606 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-irda-vlsi_ir.cil.i[348017,348030] [2021-11-06 19:06:23,606 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-irda-vlsi_ir.cil.i[348184,348197] [2021-11-06 19:06:23,606 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-irda-vlsi_ir.cil.i[348352,348365] [2021-11-06 19:06:23,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 19:06:23,770 INFO L208 MainTranslator]: Completed translation [2021-11-06 19:06:23,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23 WrapperNode [2021-11-06 19:06:23,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 19:06:23,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 19:06:23,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 19:06:23,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 19:06:23,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:23,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:24,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 19:06:24,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 19:06:24,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 19:06:24,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 19:06:24,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:24,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:24,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:24,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:25,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:25,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:25,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:25,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 19:06:25,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 19:06:25,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 19:06:25,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 19:06:25,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (1/1) ... [2021-11-06 19:06:25,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 19:06:25,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 19:06:25,993 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 19:06:26,067 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 19:06:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 19:06:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 19:06:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 19:06:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 19:06:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 19:06:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 19:06:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 19:07:43,839 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 19:07:43,840 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 19:07:43,840 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 19:07:43,841 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 19:07:43,841 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 19:07:43,842 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 19:07:43,843 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 19:07:43,883 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 19:07:43,883 INFO L299 CfgBuilder]: Removed 5799 assume(true) statements. [2021-11-06 19:07:43,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:07:43 BoogieIcfgContainer [2021-11-06 19:07:43,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 19:07:43,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 19:07:43,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 19:07:43,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 19:07:43,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:06:20" (1/3) ... [2021-11-06 19:07:43,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f16a1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:07:43, skipping insertion in model container [2021-11-06 19:07:43,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:06:23" (2/3) ... [2021-11-06 19:07:43,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f16a1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:07:43, skipping insertion in model container [2021-11-06 19:07:43,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:07:43" (3/3) ... [2021-11-06 19:07:43,898 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-irda-vlsi_ir.cil.i [2021-11-06 19:07:43,903 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 19:07:43,903 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2021-11-06 19:07:43,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 19:07:43,968 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 19:07:43,968 INFO L340 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2021-11-06 19:07:44,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 5442 states, 5381 states have (on average 1.3413863594127486) internal successors, (7218), 5441 states have internal predecessors, (7218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:44,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 19:07:44,064 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:07:44,065 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:07:44,066 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:07:44,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:07:44,071 INFO L85 PathProgramCache]: Analyzing trace with hash -2097704285, now seen corresponding path program 1 times [2021-11-06 19:07:44,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:07:44,079 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36078763] [2021-11-06 19:07:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:07:44,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:07:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:07:44,920 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 19:07:44,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:07:44,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36078763] [2021-11-06 19:07:44,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36078763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:07:44,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:07:44,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:07:44,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747873251] [2021-11-06 19:07:44,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:07:44,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:07:44,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:07:44,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:07:44,955 INFO L87 Difference]: Start difference. First operand has 5442 states, 5381 states have (on average 1.3413863594127486) internal successors, (7218), 5441 states have internal predecessors, (7218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:47,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:07:47,834 INFO L93 Difference]: Finished difference Result 15656 states and 20767 transitions. [2021-11-06 19:07:47,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:07:47,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-06 19:07:47,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:07:47,894 INFO L225 Difference]: With dead ends: 15656 [2021-11-06 19:07:47,894 INFO L226 Difference]: Without dead ends: 10010 [2021-11-06 19:07:47,912 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 19:07:47,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10010 states. [2021-11-06 19:07:48,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10010 to 8653. [2021-11-06 19:07:48,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8653 states, 8592 states have (on average 1.2932960893854748) internal successors, (11112), 8652 states have internal predecessors, (11112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:48,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8653 states to 8653 states and 11112 transitions. [2021-11-06 19:07:48,419 INFO L78 Accepts]: Start accepts. Automaton has 8653 states and 11112 transitions. Word has length 50 [2021-11-06 19:07:48,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:07:48,420 INFO L470 AbstractCegarLoop]: Abstraction has 8653 states and 11112 transitions. [2021-11-06 19:07:48,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 8653 states and 11112 transitions. [2021-11-06 19:07:48,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-06 19:07:48,423 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:07:48,423 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:07:48,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 19:07:48,424 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:07:48,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:07:48,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1423488389, now seen corresponding path program 1 times [2021-11-06 19:07:48,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:07:48,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890060388] [2021-11-06 19:07:48,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:07:48,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:07:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:07:48,825 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 19:07:48,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:07:48,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890060388] [2021-11-06 19:07:48,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890060388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:07:48,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:07:48,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:07:48,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742881235] [2021-11-06 19:07:48,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:07:48,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:07:48,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:07:48,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:07:48,828 INFO L87 Difference]: Start difference. First operand 8653 states and 11112 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:51,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:07:51,509 INFO L93 Difference]: Finished difference Result 25473 states and 32799 transitions. [2021-11-06 19:07:51,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:07:51,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-06 19:07:51,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:07:51,591 INFO L225 Difference]: With dead ends: 25473 [2021-11-06 19:07:51,592 INFO L226 Difference]: Without dead ends: 16912 [2021-11-06 19:07:51,615 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 19:07:51,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16912 states. [2021-11-06 19:07:52,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16912 to 16868. [2021-11-06 19:07:52,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16868 states, 16807 states have (on average 1.2943416433628845) internal successors, (21754), 16867 states have internal predecessors, (21754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:52,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16868 states to 16868 states and 21754 transitions. [2021-11-06 19:07:52,136 INFO L78 Accepts]: Start accepts. Automaton has 16868 states and 21754 transitions. Word has length 52 [2021-11-06 19:07:52,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:07:52,137 INFO L470 AbstractCegarLoop]: Abstraction has 16868 states and 21754 transitions. [2021-11-06 19:07:52,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:52,139 INFO L276 IsEmpty]: Start isEmpty. Operand 16868 states and 21754 transitions. [2021-11-06 19:07:52,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-06 19:07:52,144 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:07:52,149 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:07:52,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 19:07:52,150 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:07:52,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:07:52,151 INFO L85 PathProgramCache]: Analyzing trace with hash -475618733, now seen corresponding path program 1 times [2021-11-06 19:07:52,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:07:52,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819080028] [2021-11-06 19:07:52,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:07:52,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:07:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:07:52,489 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 19:07:52,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:07:52,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819080028] [2021-11-06 19:07:52,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819080028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:07:52,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:07:52,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:07:52,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019737744] [2021-11-06 19:07:52,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:07:52,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:07:52,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:07:52,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:07:52,492 INFO L87 Difference]: Start difference. First operand 16868 states and 21754 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:55,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:07:55,463 INFO L93 Difference]: Finished difference Result 47272 states and 60910 transitions. [2021-11-06 19:07:55,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:07:55,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-06 19:07:55,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:07:55,576 INFO L225 Difference]: With dead ends: 47272 [2021-11-06 19:07:55,577 INFO L226 Difference]: Without dead ends: 30496 [2021-11-06 19:07:55,621 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 19:07:55,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30496 states. [2021-11-06 19:07:56,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30496 to 28968. [2021-11-06 19:07:56,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28968 states, 28907 states have (on average 1.2918670218286228) internal successors, (37344), 28967 states have internal predecessors, (37344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:56,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28968 states to 28968 states and 37344 transitions. [2021-11-06 19:07:56,610 INFO L78 Accepts]: Start accepts. Automaton has 28968 states and 37344 transitions. Word has length 56 [2021-11-06 19:07:56,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:07:56,612 INFO L470 AbstractCegarLoop]: Abstraction has 28968 states and 37344 transitions. [2021-11-06 19:07:56,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:07:56,613 INFO L276 IsEmpty]: Start isEmpty. Operand 28968 states and 37344 transitions. [2021-11-06 19:07:56,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-06 19:07:56,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:07:56,615 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:07:56,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 19:07:56,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:07:56,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:07:56,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1528840602, now seen corresponding path program 1 times [2021-11-06 19:07:56,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:07:56,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310184458] [2021-11-06 19:07:56,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:07:56,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:07:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:07:56,939 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 19:07:56,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:07:56,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310184458] [2021-11-06 19:07:56,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310184458] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:07:56,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:07:56,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:07:56,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131619576] [2021-11-06 19:07:56,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:07:56,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:07:56,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:07:56,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:07:56,942 INFO L87 Difference]: Start difference. First operand 28968 states and 37344 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:00,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:00,029 INFO L93 Difference]: Finished difference Result 47063 states and 60689 transitions. [2021-11-06 19:08:00,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:08:00,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-06 19:08:00,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:00,093 INFO L225 Difference]: With dead ends: 47063 [2021-11-06 19:08:00,094 INFO L226 Difference]: Without dead ends: 18187 [2021-11-06 19:08:00,149 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:08:00,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18187 states. [2021-11-06 19:08:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18187 to 18081. [2021-11-06 19:08:00,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18081 states, 18020 states have (on average 1.2918978912319645) internal successors, (23280), 18080 states have internal predecessors, (23280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:00,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18081 states to 18081 states and 23280 transitions. [2021-11-06 19:08:00,703 INFO L78 Accepts]: Start accepts. Automaton has 18081 states and 23280 transitions. Word has length 70 [2021-11-06 19:08:00,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:00,703 INFO L470 AbstractCegarLoop]: Abstraction has 18081 states and 23280 transitions. [2021-11-06 19:08:00,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:00,704 INFO L276 IsEmpty]: Start isEmpty. Operand 18081 states and 23280 transitions. [2021-11-06 19:08:00,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 19:08:00,706 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:00,707 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:00,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 19:08:00,707 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:00,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:00,708 INFO L85 PathProgramCache]: Analyzing trace with hash 980879748, now seen corresponding path program 1 times [2021-11-06 19:08:00,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:00,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150459142] [2021-11-06 19:08:00,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:00,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:01,074 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 19:08:01,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:01,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150459142] [2021-11-06 19:08:01,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150459142] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:01,075 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:01,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:01,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268080167] [2021-11-06 19:08:01,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:08:01,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:01,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:08:01,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:08:01,076 INFO L87 Difference]: Start difference. First operand 18081 states and 23280 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:04,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:04,105 INFO L93 Difference]: Finished difference Result 53029 states and 68411 transitions. [2021-11-06 19:08:04,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:08:04,106 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 19:08:04,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:04,195 INFO L225 Difference]: With dead ends: 53029 [2021-11-06 19:08:04,195 INFO L226 Difference]: Without dead ends: 35211 [2021-11-06 19:08:04,249 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 19:08:04,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35211 states. [2021-11-06 19:08:04,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35211 to 35167. [2021-11-06 19:08:04,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35167 states, 35106 states have (on average 1.2924286446761237) internal successors, (45372), 35166 states have internal predecessors, (45372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:05,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35167 states to 35167 states and 45372 transitions. [2021-11-06 19:08:05,046 INFO L78 Accepts]: Start accepts. Automaton has 35167 states and 45372 transitions. Word has length 78 [2021-11-06 19:08:05,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:05,052 INFO L470 AbstractCegarLoop]: Abstraction has 35167 states and 45372 transitions. [2021-11-06 19:08:05,052 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 19:08:05,052 INFO L276 IsEmpty]: Start isEmpty. Operand 35167 states and 45372 transitions. [2021-11-06 19:08:05,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 19:08:05,054 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:05,054 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] [2021-11-06 19:08:05,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 19:08:05,055 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:05,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:05,057 INFO L85 PathProgramCache]: Analyzing trace with hash -40188606, now seen corresponding path program 1 times [2021-11-06 19:08:05,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:05,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919640399] [2021-11-06 19:08:05,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:05,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:05,361 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 19:08:05,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:05,361 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919640399] [2021-11-06 19:08:05,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919640399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:05,361 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:05,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:05,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964410220] [2021-11-06 19:08:05,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 19:08:05,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:05,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 19:08:05,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 19:08:05,363 INFO L87 Difference]: Start difference. First operand 35167 states and 45372 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:08,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:08,498 INFO L93 Difference]: Finished difference Result 87209 states and 112611 transitions. [2021-11-06 19:08:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 19:08:08,499 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 19:08:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:08,648 INFO L225 Difference]: With dead ends: 87209 [2021-11-06 19:08:08,648 INFO L226 Difference]: Without dead ends: 52305 [2021-11-06 19:08:08,718 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 19:08:08,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52305 states. [2021-11-06 19:08:09,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52305 to 52212. [2021-11-06 19:08:09,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52212 states, 52151 states have (on average 1.2928419397518744) internal successors, (67423), 52211 states have internal predecessors, (67423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:10,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52212 states to 52212 states and 67423 transitions. [2021-11-06 19:08:10,013 INFO L78 Accepts]: Start accepts. Automaton has 52212 states and 67423 transitions. Word has length 78 [2021-11-06 19:08:10,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:10,014 INFO L470 AbstractCegarLoop]: Abstraction has 52212 states and 67423 transitions. [2021-11-06 19:08:10,014 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 19:08:10,014 INFO L276 IsEmpty]: Start isEmpty. Operand 52212 states and 67423 transitions. [2021-11-06 19:08:10,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-06 19:08:10,015 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:10,016 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:10,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 19:08:10,016 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:10,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:10,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1693939489, now seen corresponding path program 1 times [2021-11-06 19:08:10,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:10,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404569325] [2021-11-06 19:08:10,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:10,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:10,459 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 19:08:10,460 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:10,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404569325] [2021-11-06 19:08:10,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404569325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:10,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:10,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:10,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149358735] [2021-11-06 19:08:10,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:08:10,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:10,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:08:10,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:08:10,462 INFO L87 Difference]: Start difference. First operand 52212 states and 67423 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:12,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:12,144 INFO L93 Difference]: Finished difference Result 52212 states and 67423 transitions. [2021-11-06 19:08:12,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:08:12,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-06 19:08:12,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:12,265 INFO L225 Difference]: With dead ends: 52212 [2021-11-06 19:08:12,265 INFO L226 Difference]: Without dead ends: 52206 [2021-11-06 19:08:12,283 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:08:12,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52206 states. [2021-11-06 19:08:13,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52206 to 52206. [2021-11-06 19:08:13,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52206 states, 52148 states have (on average 1.2928012579581192) internal successors, (67417), 52205 states have internal predecessors, (67417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:13,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52206 states to 52206 states and 67417 transitions. [2021-11-06 19:08:13,437 INFO L78 Accepts]: Start accepts. Automaton has 52206 states and 67417 transitions. Word has length 78 [2021-11-06 19:08:13,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:13,438 INFO L470 AbstractCegarLoop]: Abstraction has 52206 states and 67417 transitions. [2021-11-06 19:08:13,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand 52206 states and 67417 transitions. [2021-11-06 19:08:13,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 19:08:13,439 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:13,439 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:13,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 19:08:13,440 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:13,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:13,440 INFO L85 PathProgramCache]: Analyzing trace with hash 83393220, now seen corresponding path program 1 times [2021-11-06 19:08:13,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:13,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144070042] [2021-11-06 19:08:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:13,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:13,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 19:08:14,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:14,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144070042] [2021-11-06 19:08:14,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144070042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:14,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:14,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:14,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895010788] [2021-11-06 19:08:14,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:08:14,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:14,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:08:14,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:08:14,009 INFO L87 Difference]: Start difference. First operand 52206 states and 67417 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:15,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:15,505 INFO L93 Difference]: Finished difference Result 52206 states and 67417 transitions. [2021-11-06 19:08:15,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:08:15,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-06 19:08:15,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:15,614 INFO L225 Difference]: With dead ends: 52206 [2021-11-06 19:08:15,614 INFO L226 Difference]: Without dead ends: 52200 [2021-11-06 19:08:15,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:08:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52200 states. [2021-11-06 19:08:16,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52200 to 52200. [2021-11-06 19:08:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52200 states, 52145 states have (on average 1.2927605714833637) internal successors, (67411), 52199 states have internal predecessors, (67411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52200 states to 52200 states and 67411 transitions. [2021-11-06 19:08:16,967 INFO L78 Accepts]: Start accepts. Automaton has 52200 states and 67411 transitions. Word has length 80 [2021-11-06 19:08:16,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:16,968 INFO L470 AbstractCegarLoop]: Abstraction has 52200 states and 67411 transitions. [2021-11-06 19:08:16,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:16,968 INFO L276 IsEmpty]: Start isEmpty. Operand 52200 states and 67411 transitions. [2021-11-06 19:08:16,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-06 19:08:16,969 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:16,970 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:16,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 19:08:16,970 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:16,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:16,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1463344409, now seen corresponding path program 1 times [2021-11-06 19:08:16,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:16,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363633133] [2021-11-06 19:08:16,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:16,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:17,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:17,374 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 19:08:17,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:17,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363633133] [2021-11-06 19:08:17,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363633133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:17,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:17,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:17,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418018059] [2021-11-06 19:08:17,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:08:17,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:17,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:08:17,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:08:17,376 INFO L87 Difference]: Start difference. First operand 52200 states and 67411 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:18,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:18,931 INFO L93 Difference]: Finished difference Result 52200 states and 67411 transitions. [2021-11-06 19:08:18,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:08:18,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-06 19:08:18,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:19,033 INFO L225 Difference]: With dead ends: 52200 [2021-11-06 19:08:19,034 INFO L226 Difference]: Without dead ends: 52194 [2021-11-06 19:08:19,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:08:19,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52194 states. [2021-11-06 19:08:20,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52194 to 52194. [2021-11-06 19:08:20,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52194 states, 52142 states have (on average 1.2927198803267999) internal successors, (67405), 52193 states have internal predecessors, (67405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:20,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52194 states to 52194 states and 67405 transitions. [2021-11-06 19:08:20,324 INFO L78 Accepts]: Start accepts. Automaton has 52194 states and 67405 transitions. Word has length 82 [2021-11-06 19:08:20,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:20,324 INFO L470 AbstractCegarLoop]: Abstraction has 52194 states and 67405 transitions. [2021-11-06 19:08:20,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:20,324 INFO L276 IsEmpty]: Start isEmpty. Operand 52194 states and 67405 transitions. [2021-11-06 19:08:20,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-06 19:08:20,326 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:20,326 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:20,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 19:08:20,326 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:20,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:20,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1819521142, now seen corresponding path program 1 times [2021-11-06 19:08:20,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:20,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010668412] [2021-11-06 19:08:20,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:20,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:20,852 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 19:08:20,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:20,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010668412] [2021-11-06 19:08:20,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010668412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:20,853 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:20,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:20,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285382726] [2021-11-06 19:08:20,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:08:20,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:20,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:08:20,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:08:20,854 INFO L87 Difference]: Start difference. First operand 52194 states and 67405 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:22,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:22,372 INFO L93 Difference]: Finished difference Result 52194 states and 67405 transitions. [2021-11-06 19:08:22,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:08:22,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-06 19:08:22,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:22,462 INFO L225 Difference]: With dead ends: 52194 [2021-11-06 19:08:22,463 INFO L226 Difference]: Without dead ends: 52188 [2021-11-06 19:08:22,481 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:08:22,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52188 states. [2021-11-06 19:08:23,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52188 to 52188. [2021-11-06 19:08:23,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52188 states, 52139 states have (on average 1.2926791844876195) internal successors, (67399), 52187 states have internal predecessors, (67399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:23,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52188 states to 52188 states and 67399 transitions. [2021-11-06 19:08:23,738 INFO L78 Accepts]: Start accepts. Automaton has 52188 states and 67399 transitions. Word has length 84 [2021-11-06 19:08:23,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:23,738 INFO L470 AbstractCegarLoop]: Abstraction has 52188 states and 67399 transitions. [2021-11-06 19:08:23,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:23,738 INFO L276 IsEmpty]: Start isEmpty. Operand 52188 states and 67399 transitions. [2021-11-06 19:08:23,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-06 19:08:23,740 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:23,740 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:23,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 19:08:23,740 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:23,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:23,741 INFO L85 PathProgramCache]: Analyzing trace with hash -507977555, now seen corresponding path program 1 times [2021-11-06 19:08:23,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:23,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255251495] [2021-11-06 19:08:23,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:23,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:24,332 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 19:08:24,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:24,333 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255251495] [2021-11-06 19:08:24,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255251495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:24,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:24,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:24,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704039573] [2021-11-06 19:08:24,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:08:24,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:24,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:08:24,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:08:24,335 INFO L87 Difference]: Start difference. First operand 52188 states and 67399 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:25,995 INFO L93 Difference]: Finished difference Result 52188 states and 67399 transitions. [2021-11-06 19:08:25,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:08:25,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-06 19:08:25,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:26,087 INFO L225 Difference]: With dead ends: 52188 [2021-11-06 19:08:26,087 INFO L226 Difference]: Without dead ends: 52182 [2021-11-06 19:08:26,105 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:08:26,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52182 states. [2021-11-06 19:08:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52182 to 52182. [2021-11-06 19:08:27,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52182 states, 52136 states have (on average 1.2926384839650147) internal successors, (67393), 52181 states have internal predecessors, (67393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:27,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52182 states to 52182 states and 67393 transitions. [2021-11-06 19:08:27,535 INFO L78 Accepts]: Start accepts. Automaton has 52182 states and 67393 transitions. Word has length 86 [2021-11-06 19:08:27,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:27,535 INFO L470 AbstractCegarLoop]: Abstraction has 52182 states and 67393 transitions. [2021-11-06 19:08:27,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:27,535 INFO L276 IsEmpty]: Start isEmpty. Operand 52182 states and 67393 transitions. [2021-11-06 19:08:27,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 19:08:27,537 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:27,538 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:27,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 19:08:27,538 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:27,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:27,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1459992144, now seen corresponding path program 1 times [2021-11-06 19:08:27,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:27,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994915087] [2021-11-06 19:08:27,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:27,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:27,935 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 19:08:27,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:27,935 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994915087] [2021-11-06 19:08:27,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994915087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:27,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:27,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:27,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252233707] [2021-11-06 19:08:27,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:08:27,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:27,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:08:27,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:08:27,937 INFO L87 Difference]: Start difference. First operand 52182 states and 67393 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:29,525 INFO L93 Difference]: Finished difference Result 52182 states and 67393 transitions. [2021-11-06 19:08:29,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:08:29,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-06 19:08:29,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:29,628 INFO L225 Difference]: With dead ends: 52182 [2021-11-06 19:08:29,628 INFO L226 Difference]: Without dead ends: 52176 [2021-11-06 19:08:29,650 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:08:29,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52176 states. [2021-11-06 19:08:31,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52176 to 52176. [2021-11-06 19:08:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52176 states, 52133 states have (on average 1.2925977787581762) internal successors, (67387), 52175 states have internal predecessors, (67387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:31,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52176 states to 52176 states and 67387 transitions. [2021-11-06 19:08:31,307 INFO L78 Accepts]: Start accepts. Automaton has 52176 states and 67387 transitions. Word has length 88 [2021-11-06 19:08:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:31,307 INFO L470 AbstractCegarLoop]: Abstraction has 52176 states and 67387 transitions. [2021-11-06 19:08:31,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:31,308 INFO L276 IsEmpty]: Start isEmpty. Operand 52176 states and 67387 transitions. [2021-11-06 19:08:31,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 19:08:31,310 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:31,310 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:31,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 19:08:31,311 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:31,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:31,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1401704333, now seen corresponding path program 1 times [2021-11-06 19:08:31,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:31,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102861910] [2021-11-06 19:08:31,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:31,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 19:08:31,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:31,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102861910] [2021-11-06 19:08:31,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102861910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:31,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:31,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:31,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069913455] [2021-11-06 19:08:31,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:08:31,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:31,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:08:31,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:08:31,852 INFO L87 Difference]: Start difference. First operand 52176 states and 67387 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:33,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:33,411 INFO L93 Difference]: Finished difference Result 52176 states and 67387 transitions. [2021-11-06 19:08:33,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:08:33,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-06 19:08:33,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:33,515 INFO L225 Difference]: With dead ends: 52176 [2021-11-06 19:08:33,515 INFO L226 Difference]: Without dead ends: 52170 [2021-11-06 19:08:33,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:08:33,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52170 states. [2021-11-06 19:08:35,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52170 to 52170. [2021-11-06 19:08:35,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52170 states, 52130 states have (on average 1.2925570688662957) internal successors, (67381), 52169 states have internal predecessors, (67381), 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 19:08:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52170 states to 52170 states and 67381 transitions. [2021-11-06 19:08:35,260 INFO L78 Accepts]: Start accepts. Automaton has 52170 states and 67381 transitions. Word has length 90 [2021-11-06 19:08:35,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 19:08:35,261 INFO L470 AbstractCegarLoop]: Abstraction has 52170 states and 67381 transitions. [2021-11-06 19:08:35,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 19:08:35,261 INFO L276 IsEmpty]: Start isEmpty. Operand 52170 states and 67381 transitions. [2021-11-06 19:08:35,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-06 19:08:35,263 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 19:08:35,264 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 19:08:35,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-06 19:08:35,264 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 58 more)] === [2021-11-06 19:08:35,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 19:08:35,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1582018326, now seen corresponding path program 1 times [2021-11-06 19:08:35,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 19:08:35,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719295250] [2021-11-06 19:08:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 19:08:35,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 19:08:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 19:08:35,610 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-06 19:08:35,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 19:08:35,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719295250] [2021-11-06 19:08:35,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719295250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 19:08:35,610 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 19:08:35,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 19:08:35,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518999379] [2021-11-06 19:08:35,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 19:08:35,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 19:08:35,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 19:08:35,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 19:08:35,612 INFO L87 Difference]: Start difference. First operand 52170 states and 67381 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 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 19:08:37,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 19:08:37,848 INFO L93 Difference]: Finished difference Result 52170 states and 67381 transitions. [2021-11-06 19:08:37,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 19:08:37,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 3 states have internal predecessors, (83), 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 92 [2021-11-06 19:08:37,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 19:08:37,955 INFO L225 Difference]: With dead ends: 52170 [2021-11-06 19:08:37,955 INFO L226 Difference]: Without dead ends: 52164 [2021-11-06 19:08:37,977 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 19:08:38,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52164 states.