./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-mutex_drivers-net-netconsole.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-mutex_drivers-net-netconsole.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 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 02:31:37,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:31:37,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:31:38,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:31:38,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:31:38,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:31:38,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:31:38,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:31:38,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:31:38,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:31:38,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:31:38,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:31:38,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:31:38,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:31:38,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:31:38,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:31:38,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:31:38,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:31:38,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:31:38,035 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:31:38,038 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:31:38,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:31:38,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:31:38,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:31:38,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:31:38,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:31:38,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:31:38,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:31:38,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:31:38,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:31:38,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:31:38,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:31:38,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:31:38,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:31:38,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:31:38,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:31:38,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:31:38,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:31:38,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:31:38,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:31:38,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:31:38,054 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 02:31:38,078 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:31:38,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:31:38,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:31:38,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:31:38,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:31:38,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:31:38,079 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 02:31:38,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:31:38,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:31:38,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:31:38,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:31:38,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:31:38,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:31:38,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:31:38,081 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:31:38,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:31:38,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:31:38,081 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:31:38,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:31:38,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:31:38,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:31:38,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:31:38,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:31:38,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 02:31:38,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:31:38,083 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 02:31:38,083 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 02:31:38,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:31:38,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:31:38,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df [2021-11-23 02:31:38,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:31:38,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:31:38,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:31:38,281 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:31:38,282 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:31:38,282 INFO L432 ainManager$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-mutex_drivers-net-netconsole.cil.i [2021-11-23 02:31:38,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33dbb179a/8bb3790586a442698cf58d1e4db44fc3/FLAGb37bbb1aa [2021-11-23 02:31:39,001 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:31:39,002 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-23 02:31:39,031 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33dbb179a/8bb3790586a442698cf58d1e4db44fc3/FLAGb37bbb1aa [2021-11-23 02:31:39,340 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33dbb179a/8bb3790586a442698cf58d1e4db44fc3 [2021-11-23 02:31:39,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:31:39,343 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:31:39,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:31:39,356 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:31:39,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:31:39,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:39" (1/1) ... [2021-11-23 02:31:39,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47771bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:39, skipping insertion in model container [2021-11-23 02:31:39,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:39" (1/1) ... [2021-11-23 02:31:39,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:31:39,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:31:40,614 WARN L230 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-mutex_drivers-net-netconsole.cil.i[311030,311043] [2021-11-23 02:31:40,616 WARN L230 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-mutex_drivers-net-netconsole.cil.i[311196,311209] [2021-11-23 02:31:40,617 WARN L230 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-mutex_drivers-net-netconsole.cil.i[311360,311373] [2021-11-23 02:31:40,618 WARN L230 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-mutex_drivers-net-netconsole.cil.i[311525,311538] [2021-11-23 02:31:40,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:31:40,658 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:31:40,815 WARN L230 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-mutex_drivers-net-netconsole.cil.i[311030,311043] [2021-11-23 02:31:40,816 WARN L230 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-mutex_drivers-net-netconsole.cil.i[311196,311209] [2021-11-23 02:31:40,816 WARN L230 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-mutex_drivers-net-netconsole.cil.i[311360,311373] [2021-11-23 02:31:40,816 WARN L230 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-mutex_drivers-net-netconsole.cil.i[311525,311538] [2021-11-23 02:31:40,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:31:40,889 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:31:40,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40 WrapperNode [2021-11-23 02:31:40,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:31:40,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:31:40,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:31:40,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:31:40,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:40,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:41,174 INFO L137 Inliner]: procedures = 289, calls = 1070, calls flagged for inlining = 593, calls inlined = 1821, statements flattened = 19501 [2021-11-23 02:31:41,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:31:41,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:31:41,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:31:41,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:31:41,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:41,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:41,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:41,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:41,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:41,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:41,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:41,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:31:41,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:31:41,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:31:41,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:31:41,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (1/1) ... [2021-11-23 02:31:41,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:31:41,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 02:31:41,814 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) [2021-11-23 02:31:41,849 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 [2021-11-23 02:31:41,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:31:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:31:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 02:31:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:31:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:31:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:31:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:31:41,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:31:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:31:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:31:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:31:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:31:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:31:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:31:41,867 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:31:41,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:31:41,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:31:41,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:31:42,621 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:31:42,622 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:31:47,287 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,287 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,287 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#13: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,288 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,288 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#15: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,288 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#14: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,288 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#16: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,288 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,288 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,288 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,289 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,289 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,289 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,289 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,289 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,289 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res#1 := 0; [2021-11-23 02:31:47,290 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:31:47,290 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:31:47,315 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:31:47,315 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 02:31:47,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:47 BoogieIcfgContainer [2021-11-23 02:31:47,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:31:47,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:31:47,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:31:47,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:31:47,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:31:39" (1/3) ... [2021-11-23 02:31:47,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6038a2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:47, skipping insertion in model container [2021-11-23 02:31:47,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:40" (2/3) ... [2021-11-23 02:31:47,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6038a2ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:47, skipping insertion in model container [2021-11-23 02:31:47,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:47" (3/3) ... [2021-11-23 02:31:47,324 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-23 02:31:47,327 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:31:47,327 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-23 02:31:47,363 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:31:47,367 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 [2021-11-23 02:31:47,367 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-23 02:31:47,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 3807 states, 3779 states have (on average 1.3307753373908442) internal successors, (5029), 3806 states have internal predecessors, (5029), 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) [2021-11-23 02:31:47,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-23 02:31:47,430 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:47,431 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:47,431 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-23 02:31:47,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:47,438 INFO L85 PathProgramCache]: Analyzing trace with hash 63220504, now seen corresponding path program 1 times [2021-11-23 02:31:47,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:31:47,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051615068] [2021-11-23 02:31:47,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:47,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:47,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:47,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:31:47,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051615068] [2021-11-23 02:31:47,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051615068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:47,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:31:47,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:31:47,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584625291] [2021-11-23 02:31:47,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:47,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:31:47,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:31:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:31:48,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:31:48,039 INFO L87 Difference]: Start difference. First operand has 3807 states, 3779 states have (on average 1.3307753373908442) internal successors, (5029), 3806 states have internal predecessors, (5029), 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 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2021-11-23 02:31:48,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:48,255 INFO L93 Difference]: Finished difference Result 9619 states and 12763 transitions. [2021-11-23 02:31:48,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:31:48,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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 242 [2021-11-23 02:31:48,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:48,283 INFO L225 Difference]: With dead ends: 9619 [2021-11-23 02:31:48,283 INFO L226 Difference]: Without dead ends: 6031 [2021-11-23 02:31:48,291 INFO L932 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 [2021-11-23 02:31:48,294 INFO L933 BasicCegarLoop]: 4952 mSDtfsCounter, 3810 mSDsluCounter, 4797 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3810 SdHoareTripleChecker+Valid, 9749 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:48,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3810 Valid, 9749 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:31:48,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6031 states. [2021-11-23 02:31:48,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6031 to 5999. [2021-11-23 02:31:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 5971 states have (on average 1.2744933846926814) internal successors, (7610), 5998 states have internal predecessors, (7610), 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) [2021-11-23 02:31:48,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 7610 transitions. [2021-11-23 02:31:48,434 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 7610 transitions. Word has length 242 [2021-11-23 02:31:48,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:48,435 INFO L470 AbstractCegarLoop]: Abstraction has 5999 states and 7610 transitions. [2021-11-23 02:31:48,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2021-11-23 02:31:48,436 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 7610 transitions. [2021-11-23 02:31:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-23 02:31:48,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:48,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:48,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:31:48,442 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-23 02:31:48,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:48,443 INFO L85 PathProgramCache]: Analyzing trace with hash 262840642, now seen corresponding path program 1 times [2021-11-23 02:31:48,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:31:48,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99895631] [2021-11-23 02:31:48,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:48,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:48,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:48,645 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:31:48,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99895631] [2021-11-23 02:31:48,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99895631] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:48,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:31:48,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:31:48,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779356724] [2021-11-23 02:31:48,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:48,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:31:48,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:31:48,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:31:48,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:31:48,656 INFO L87 Difference]: Start difference. First operand 5999 states and 7610 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2021-11-23 02:31:48,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:48,926 INFO L93 Difference]: Finished difference Result 13637 states and 17394 transitions. [2021-11-23 02:31:48,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:31:48,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 256 [2021-11-23 02:31:48,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:48,951 INFO L225 Difference]: With dead ends: 13637 [2021-11-23 02:31:48,951 INFO L226 Difference]: Without dead ends: 8235 [2021-11-23 02:31:48,960 INFO L932 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 [2021-11-23 02:31:48,964 INFO L933 BasicCegarLoop]: 4271 mSDtfsCounter, 3208 mSDsluCounter, 4232 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3208 SdHoareTripleChecker+Valid, 8503 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:48,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3208 Valid, 8503 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:31:48,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8235 states. [2021-11-23 02:31:49,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8235 to 8099. [2021-11-23 02:31:49,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8099 states, 8071 states have (on average 1.2791475653574527) internal successors, (10324), 8098 states have internal predecessors, (10324), 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) [2021-11-23 02:31:49,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8099 states to 8099 states and 10324 transitions. [2021-11-23 02:31:49,125 INFO L78 Accepts]: Start accepts. Automaton has 8099 states and 10324 transitions. Word has length 256 [2021-11-23 02:31:49,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:49,127 INFO L470 AbstractCegarLoop]: Abstraction has 8099 states and 10324 transitions. [2021-11-23 02:31:49,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2021-11-23 02:31:49,127 INFO L276 IsEmpty]: Start isEmpty. Operand 8099 states and 10324 transitions. [2021-11-23 02:31:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-23 02:31:49,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:49,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:49,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:31:49,132 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-23 02:31:49,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:49,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2031790912, now seen corresponding path program 1 times [2021-11-23 02:31:49,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:31:49,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724262978] [2021-11-23 02:31:49,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:49,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:49,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:49,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:49,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:31:49,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724262978] [2021-11-23 02:31:49,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724262978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:49,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:31:49,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:31:49,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609013572] [2021-11-23 02:31:49,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:49,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:31:49,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:31:49,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:31:49,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:31:49,341 INFO L87 Difference]: Start difference. First operand 8099 states and 10324 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2021-11-23 02:31:49,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:49,582 INFO L93 Difference]: Finished difference Result 19909 states and 25501 transitions. [2021-11-23 02:31:49,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:31:49,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 257 [2021-11-23 02:31:49,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:49,728 INFO L225 Difference]: With dead ends: 19909 [2021-11-23 02:31:49,733 INFO L226 Difference]: Without dead ends: 12407 [2021-11-23 02:31:49,743 INFO L932 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 [2021-11-23 02:31:49,763 INFO L933 BasicCegarLoop]: 4649 mSDtfsCounter, 3194 mSDsluCounter, 4233 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3194 SdHoareTripleChecker+Valid, 8882 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:49,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3194 Valid, 8882 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:31:49,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12407 states. [2021-11-23 02:31:50,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12407 to 12269. [2021-11-23 02:31:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12269 states, 12241 states have (on average 1.2833918797483865) internal successors, (15710), 12268 states have internal predecessors, (15710), 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) [2021-11-23 02:31:50,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12269 states to 12269 states and 15710 transitions. [2021-11-23 02:31:50,154 INFO L78 Accepts]: Start accepts. Automaton has 12269 states and 15710 transitions. Word has length 257 [2021-11-23 02:31:50,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:50,154 INFO L470 AbstractCegarLoop]: Abstraction has 12269 states and 15710 transitions. [2021-11-23 02:31:50,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2021-11-23 02:31:50,155 INFO L276 IsEmpty]: Start isEmpty. Operand 12269 states and 15710 transitions. [2021-11-23 02:31:50,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-23 02:31:50,159 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:50,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:50,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:31:50,160 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-23 02:31:50,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:50,160 INFO L85 PathProgramCache]: Analyzing trace with hash 2109337095, now seen corresponding path program 1 times [2021-11-23 02:31:50,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:31:50,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064223993] [2021-11-23 02:31:50,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:50,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:50,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:50,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:31:50,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064223993] [2021-11-23 02:31:50,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064223993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:50,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:31:50,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:31:50,309 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578660838] [2021-11-23 02:31:50,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:50,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:31:50,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:31:50,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:31:50,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:31:50,311 INFO L87 Difference]: Start difference. First operand 12269 states and 15710 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2021-11-23 02:31:50,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:50,842 INFO L93 Difference]: Finished difference Result 32102 states and 41251 transitions. [2021-11-23 02:31:50,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:31:50,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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 258 [2021-11-23 02:31:50,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:50,882 INFO L225 Difference]: With dead ends: 32102 [2021-11-23 02:31:50,883 INFO L226 Difference]: Without dead ends: 20430 [2021-11-23 02:31:50,899 INFO L932 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 [2021-11-23 02:31:50,900 INFO L933 BasicCegarLoop]: 5041 mSDtfsCounter, 3188 mSDsluCounter, 4234 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3188 SdHoareTripleChecker+Valid, 9275 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:50,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3188 Valid, 9275 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:31:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20430 states. [2021-11-23 02:31:51,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20430 to 20290. [2021-11-23 02:31:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20290 states, 20262 states have (on average 1.2862501233836738) internal successors, (26062), 20289 states have internal predecessors, (26062), 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) [2021-11-23 02:31:51,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20290 states to 20290 states and 26062 transitions. [2021-11-23 02:31:51,262 INFO L78 Accepts]: Start accepts. Automaton has 20290 states and 26062 transitions. Word has length 258 [2021-11-23 02:31:51,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:51,263 INFO L470 AbstractCegarLoop]: Abstraction has 20290 states and 26062 transitions. [2021-11-23 02:31:51,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 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) [2021-11-23 02:31:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 20290 states and 26062 transitions. [2021-11-23 02:31:51,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-23 02:31:51,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:51,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:51,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:31:51,268 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-23 02:31:51,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:51,268 INFO L85 PathProgramCache]: Analyzing trace with hash 2103117541, now seen corresponding path program 1 times [2021-11-23 02:31:51,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:31:51,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225314358] [2021-11-23 02:31:51,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:51,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:51,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:51,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:51,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:31:51,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225314358] [2021-11-23 02:31:51,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225314358] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:51,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:31:51,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:31:51,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662260118] [2021-11-23 02:31:51,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:51,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:31:51,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:31:51,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:31:51,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:31:51,413 INFO L87 Difference]: Start difference. First operand 20290 states and 26062 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2021-11-23 02:31:52,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:52,046 INFO L93 Difference]: Finished difference Result 55384 states and 71312 transitions. [2021-11-23 02:31:52,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:31:52,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 259 [2021-11-23 02:31:52,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:52,132 INFO L225 Difference]: With dead ends: 55384 [2021-11-23 02:31:52,132 INFO L226 Difference]: Without dead ends: 35691 [2021-11-23 02:31:52,170 INFO L932 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 [2021-11-23 02:31:52,171 INFO L933 BasicCegarLoop]: 5439 mSDtfsCounter, 3207 mSDsluCounter, 4235 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3207 SdHoareTripleChecker+Valid, 9674 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:52,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3207 Valid, 9674 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:31:52,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35691 states. [2021-11-23 02:31:52,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35691 to 35549. [2021-11-23 02:31:52,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35549 states, 35521 states have (on average 1.2879423439655415) internal successors, (45749), 35548 states have internal predecessors, (45749), 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) [2021-11-23 02:31:52,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35549 states to 35549 states and 45749 transitions. [2021-11-23 02:31:52,985 INFO L78 Accepts]: Start accepts. Automaton has 35549 states and 45749 transitions. Word has length 259 [2021-11-23 02:31:52,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:52,985 INFO L470 AbstractCegarLoop]: Abstraction has 35549 states and 45749 transitions. [2021-11-23 02:31:52,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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) [2021-11-23 02:31:52,986 INFO L276 IsEmpty]: Start isEmpty. Operand 35549 states and 45749 transitions. [2021-11-23 02:31:52,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-23 02:31:52,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:52,990 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:52,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:31:52,990 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-23 02:31:52,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:52,990 INFO L85 PathProgramCache]: Analyzing trace with hash 982769740, now seen corresponding path program 1 times [2021-11-23 02:31:52,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:31:52,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213726386] [2021-11-23 02:31:52,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:52,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:53,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:53,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:31:53,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213726386] [2021-11-23 02:31:53,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213726386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:53,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:31:53,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:31:53,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462838787] [2021-11-23 02:31:53,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:53,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:31:53,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:31:53,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:31:53,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:31:53,229 INFO L87 Difference]: Start difference. First operand 35549 states and 45749 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2021-11-23 02:31:54,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:54,270 INFO L93 Difference]: Finished difference Result 99174 states and 127827 transitions. [2021-11-23 02:31:54,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:31:54,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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 260 [2021-11-23 02:31:54,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:54,435 INFO L225 Difference]: With dead ends: 99174 [2021-11-23 02:31:54,436 INFO L226 Difference]: Without dead ends: 64222 [2021-11-23 02:31:54,504 INFO L932 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 [2021-11-23 02:31:54,506 INFO L933 BasicCegarLoop]: 5818 mSDtfsCounter, 3210 mSDsluCounter, 4236 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3210 SdHoareTripleChecker+Valid, 10054 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:54,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3210 Valid, 10054 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:31:54,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64222 states. [2021-11-23 02:31:55,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64222 to 64078. [2021-11-23 02:31:55,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64078 states, 64050 states have (on average 1.2886026541764246) internal successors, (82535), 64077 states have internal predecessors, (82535), 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) [2021-11-23 02:31:56,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64078 states to 64078 states and 82535 transitions. [2021-11-23 02:31:56,172 INFO L78 Accepts]: Start accepts. Automaton has 64078 states and 82535 transitions. Word has length 260 [2021-11-23 02:31:56,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:56,173 INFO L470 AbstractCegarLoop]: Abstraction has 64078 states and 82535 transitions. [2021-11-23 02:31:56,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2021-11-23 02:31:56,173 INFO L276 IsEmpty]: Start isEmpty. Operand 64078 states and 82535 transitions. [2021-11-23 02:31:56,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-23 02:31:56,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:56,177 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:56,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:31:56,177 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-23 02:31:56,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:56,178 INFO L85 PathProgramCache]: Analyzing trace with hash 916253962, now seen corresponding path program 1 times [2021-11-23 02:31:56,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:31:56,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438631521] [2021-11-23 02:31:56,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:56,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:56,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:56,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:31:56,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438631521] [2021-11-23 02:31:56,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438631521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:56,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:31:56,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:31:56,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954532893] [2021-11-23 02:31:56,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:56,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:31:56,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:31:56,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:31:56,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:31:56,327 INFO L87 Difference]: Start difference. First operand 64078 states and 82535 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2021-11-23 02:31:58,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:58,299 INFO L93 Difference]: Finished difference Result 179930 states and 231931 transitions. [2021-11-23 02:31:58,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:31:58,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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 261 [2021-11-23 02:31:58,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:58,784 INFO L225 Difference]: With dead ends: 179930 [2021-11-23 02:31:58,784 INFO L226 Difference]: Without dead ends: 116449 [2021-11-23 02:31:58,932 INFO L932 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 [2021-11-23 02:31:58,934 INFO L933 BasicCegarLoop]: 6194 mSDtfsCounter, 3188 mSDsluCounter, 4237 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3188 SdHoareTripleChecker+Valid, 10431 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:58,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3188 Valid, 10431 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:31:59,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116449 states. [2021-11-23 02:32:01,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116449 to 116303. [2021-11-23 02:32:01,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116303 states, 116275 states have (on average 1.2880756826488926) internal successors, (149771), 116302 states have internal predecessors, (149771), 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) [2021-11-23 02:32:02,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116303 states to 116303 states and 149771 transitions. [2021-11-23 02:32:02,109 INFO L78 Accepts]: Start accepts. Automaton has 116303 states and 149771 transitions. Word has length 261 [2021-11-23 02:32:02,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:02,109 INFO L470 AbstractCegarLoop]: Abstraction has 116303 states and 149771 transitions. [2021-11-23 02:32:02,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 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) [2021-11-23 02:32:02,110 INFO L276 IsEmpty]: Start isEmpty. Operand 116303 states and 149771 transitions. [2021-11-23 02:32:02,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-23 02:32:02,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:02,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:02,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:32:02,114 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-23 02:32:02,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1507935185, now seen corresponding path program 1 times [2021-11-23 02:32:02,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:32:02,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18011665] [2021-11-23 02:32:02,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:02,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:02,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:02,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:32:02,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18011665] [2021-11-23 02:32:02,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18011665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:02,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:02,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:02,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750764132] [2021-11-23 02:32:02,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:02,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:02,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:32:02,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:02,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:02,247 INFO L87 Difference]: Start difference. First operand 116303 states and 149771 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2021-11-23 02:32:06,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:06,217 INFO L93 Difference]: Finished difference Result 327929 states and 422370 transitions. [2021-11-23 02:32:06,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:06,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 262 [2021-11-23 02:32:06,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:06,793 INFO L225 Difference]: With dead ends: 327929 [2021-11-23 02:32:06,794 INFO L226 Difference]: Without dead ends: 212223 [2021-11-23 02:32:07,256 INFO L932 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 [2021-11-23 02:32:07,257 INFO L933 BasicCegarLoop]: 6592 mSDtfsCounter, 3201 mSDsluCounter, 4238 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3201 SdHoareTripleChecker+Valid, 10830 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:07,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3201 Valid, 10830 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:32:07,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212223 states. [2021-11-23 02:32:12,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212223 to 212075. [2021-11-23 02:32:12,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212075 states, 212047 states have (on average 1.2865638278306224) internal successors, (272812), 212074 states have internal predecessors, (272812), 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) [2021-11-23 02:32:12,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212075 states to 212075 states and 272812 transitions. [2021-11-23 02:32:12,885 INFO L78 Accepts]: Start accepts. Automaton has 212075 states and 272812 transitions. Word has length 262 [2021-11-23 02:32:12,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:32:12,885 INFO L470 AbstractCegarLoop]: Abstraction has 212075 states and 272812 transitions. [2021-11-23 02:32:12,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2021-11-23 02:32:12,886 INFO L276 IsEmpty]: Start isEmpty. Operand 212075 states and 272812 transitions. [2021-11-23 02:32:12,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-11-23 02:32:12,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:32:12,888 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:32:12,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:32:12,889 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-23 02:32:12,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:32:12,889 INFO L85 PathProgramCache]: Analyzing trace with hash 975693679, now seen corresponding path program 1 times [2021-11-23 02:32:12,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:32:12,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685830533] [2021-11-23 02:32:12,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:32:12,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:32:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:32:13,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:32:13,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:32:13,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685830533] [2021-11-23 02:32:13,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685830533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:32:13,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:32:13,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:32:13,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438850461] [2021-11-23 02:32:13,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:32:13,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:32:13,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:32:13,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:32:13,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:32:13,034 INFO L87 Difference]: Start difference. First operand 212075 states and 272812 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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) [2021-11-23 02:32:20,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:32:20,881 INFO L93 Difference]: Finished difference Result 597496 states and 768847 transitions. [2021-11-23 02:32:20,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:32:20,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 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 263 [2021-11-23 02:32:20,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:32:21,973 INFO L225 Difference]: With dead ends: 597496 [2021-11-23 02:32:21,973 INFO L226 Difference]: Without dead ends: 386018 [2021-11-23 02:32:22,278 INFO L932 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 [2021-11-23 02:32:22,279 INFO L933 BasicCegarLoop]: 6977 mSDtfsCounter, 3210 mSDsluCounter, 4239 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3210 SdHoareTripleChecker+Valid, 11216 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:32:22,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3210 Valid, 11216 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:32:22,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386018 states.